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href="/w/index.php?title=Special:%E5%88%9B%E5%BB%BA%E8%B4%A6%E6%88%B7&returnto=%E6%8C%AF%E5%B9%85%E8%AA%BF%E8%AE%8A" title="我们推荐您创建账号并登录，但这不是强制性的"><span class="vector-icon mw-ui-icon-userAdd mw-ui-icon-wikimedia-userAdd"></span> <span>创建账号</span></a></li><li id="pt-login" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=Special:%E7%94%A8%E6%88%B7%E7%99%BB%E5%BD%95&returnto=%E6%8C%AF%E5%B9%85%E8%AA%BF%E8%AE%8A" title="建议你登录，尽管并非必须。[o]" accesskey="o"><span class="vector-icon mw-ui-icon-logIn mw-ui-icon-wikimedia-logIn"></span> <span>登录</span></a></li> </ul> </div> </div> <div id="p-user-menu-anon-editor" class="vector-menu mw-portlet mw-portlet-user-menu-anon-editor" > <div class="vector-menu-heading"> 未登录编辑者的页面 <a href="/wiki/Help:%E6%96%B0%E6%89%8B%E5%85%A5%E9%97%A8" aria-label="了解有关编辑的更多信息"><span>了解详情</span></a> </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-anoncontribs" class="mw-list-item"><a href="/wiki/Special:%E6%88%91%E7%9A%84%E8%B4%A1%E7%8C%AE" title="来自此IP地址的编辑列表[y]" accesskey="y"><span>贡献</span></a></li><li id="pt-anontalk" class="mw-list-item"><a href="/wiki/Special:%E6%88%91%E7%9A%84%E8%AE%A8%E8%AE%BA%E9%A1%B5" title="对于来自此IP地址编辑的讨论[n]" accesskey="n"><span>讨论</span></a></li> </ul> </div> </div> </div> </div> </nav> </div> </header> </div> <div class="mw-page-container"> <div class="mw-page-container-inner"> <div class="vector-sitenotice-container"> <div id="siteNotice"></div> </div> <div class="vector-column-start"> <div class="vector-main-menu-container"> <div id="mw-navigation"> <nav id="mw-panel" class="vector-main-menu-landmark" aria-label="站点"> <div id="vector-main-menu-pinned-container" class="vector-pinned-container"> </div> </nav> </div> </div> <div class="vector-sticky-pinned-container"> <nav id="mw-panel-toc" aria-label="目录" data-event-name="ui.sidebar-toc" class="mw-table-of-contents-container vector-toc-landmark"> <div id="vector-toc-pinned-container" class="vector-pinned-container"> <div id="vector-toc" class="vector-toc vector-pinnable-element"> <div class="vector-pinnable-header vector-toc-pinnable-header vector-pinnable-header-pinned" data-feature-name="toc-pinned" data-pinnable-element-id="vector-toc" > <h2 class="vector-pinnable-header-label">目录</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">移至侧栏</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">隐藏</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">序言</div> </a> </li> <li id="toc-示意圖" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#示意圖"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>示意圖</span> </div> </a> <ul id="toc-示意圖-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-交換調變器(switching_modulator)" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#交換調變器(switching_modulator)"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>交換調變器(switching modulator)</span> </div> </a> <ul id="toc-交換調變器(switching_modulator)-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-标准AM的简化分析" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#标准AM的简化分析"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>标准AM的简化分析</span> </div> </a> <ul id="toc-标准AM的简化分析-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-解调方法" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#解调方法"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>解调方法</span> </div> </a> <ul id="toc-解调方法-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-優點" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#優點"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>優點</span> </div> </a> <ul id="toc-優點-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-缺點" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#缺點"> <div class="vector-toc-text"> <span class="vector-toc-numb">6</span> <span>缺點</span> </div> </a> <ul id="toc-缺點-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-調幅的變化形式" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#調幅的變化形式"> <div class="vector-toc-text"> <span class="vector-toc-numb">7</span> <span>調幅的變化形式</span> </div> </a> <ul id="toc-調幅的變化形式-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-参见" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#参见"> <div class="vector-toc-text"> <span class="vector-toc-numb">8</span> <span>参见</span> </div> </a> <ul id="toc-参见-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-参考文献" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#参考文献"> <div class="vector-toc-text"> <span class="vector-toc-numb">9</span> <span>参考文献</span> </div> </a> <ul id="toc-参考文献-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-外部链接" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#外部链接"> <div class="vector-toc-text"> <span class="vector-toc-numb">10</span> <span>外部链接</span> </div> </a> <ul id="toc-外部链接-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="目录" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="开关目录" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">开关目录</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">振幅調變</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="前往另一种语言写成的文章。55种语言可用" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-55" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">55种语言</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-am mw-list-item"><a href="https://am.wikipedia.org/wiki/%E1%89%81%E1%88%98%E1%89%B5_%E1%88%98%E1%8A%A8%E1%88%AD%E1%8A%A8%E1%88%9D" title="ቁመት መከርከም – 阿姆哈拉语" lang="am" hreflang="am" data-title="ቁመት መከርከም" data-language-autonym="አማርኛ" data-language-local-name="阿姆哈拉语" class="interlanguage-link-target"><span>አማርኛ</span></a></li><li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%AA%D8%B6%D9%85%D9%8A%D9%86_%D8%A7%D9%84%D8%B3%D8%B9%D8%A9" title="تضمين السعة – 阿拉伯语" lang="ar" hreflang="ar" data-title="تضمين السعة" data-language-autonym="العربية" data-language-local-name="阿拉伯语" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-az mw-list-item"><a href="https://az.wikipedia.org/wiki/Amplitud_modulyasiyas%C4%B1" title="Amplitud modulyasiyası – 阿塞拜疆语" lang="az" hreflang="az" data-title="Amplitud modulyasiyası" data-language-autonym="Azərbaycanca" data-language-local-name="阿塞拜疆语" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/%D0%90%D0%BC%D0%BF%D0%BB%D1%96%D1%82%D1%83%D0%B4%D0%BD%D0%B0%D1%8F_%D0%BC%D0%B0%D0%B4%D1%83%D0%BB%D1%8F%D1%86%D1%8B%D1%8F" title="Амплітудная мадуляцыя – 白俄罗斯语" lang="be" hreflang="be" data-title="Амплітудная мадуляцыя" data-language-autonym="Беларуская" data-language-local-name="白俄罗斯语" class="interlanguage-link-target"><span>Беларуская</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%90%D0%BC%D0%BF%D0%BB%D0%B8%D1%82%D1%83%D0%B4%D0%BD%D0%B0_%D0%BC%D0%BE%D0%B4%D1%83%D0%BB%D0%B0%D1%86%D0%B8%D1%8F" title="Амплитудна модулация – 保加利亚语" lang="bg" hreflang="bg" data-title="Амплитудна модулация" data-language-autonym="Български" data-language-local-name="保加利亚语" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Amplitud_modulada" title="Amplitud modulada – 加泰罗尼亚语" lang="ca" hreflang="ca" data-title="Amplitud modulada" data-language-autonym="Català" data-language-local-name="加泰罗尼亚语" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Amplitudov%C3%A1_modulace" title="Amplitudová modulace – 捷克语" lang="cs" hreflang="cs" data-title="Amplitudová modulace" data-language-autonym="Čeština" data-language-local-name="捷克语" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Amplitudemodulation" title="Amplitudemodulation – 丹麦语" lang="da" hreflang="da" data-title="Amplitudemodulation" data-language-autonym="Dansk" data-language-local-name="丹麦语" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Amplitudenmodulation" title="Amplitudenmodulation – 德语" lang="de" hreflang="de" data-title="Amplitudenmodulation" data-language-autonym="Deutsch" data-language-local-name="德语" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%94%CE%B9%CE%B1%CE%BC%CF%8C%CF%81%CF%86%CF%89%CF%83%CE%B7_%CF%80%CE%BB%CE%AC%CF%84%CE%BF%CF%85%CF%82" title="Διαμόρφωση πλάτους – 希腊语" lang="el" hreflang="el" data-title="Διαμόρφωση πλάτους" data-language-autonym="Ελληνικά" data-language-local-name="希腊语" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Amplitude_modulation" title="Amplitude modulation – 英语" lang="en" hreflang="en" data-title="Amplitude modulation" data-language-autonym="English" data-language-local-name="英语" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/Amplitudmodulado" title="Amplitudmodulado – 世界语" lang="eo" hreflang="eo" data-title="Amplitudmodulado" data-language-autonym="Esperanto" data-language-local-name="世界语" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Amplitud_modulada" title="Amplitud modulada – 西班牙语" lang="es" hreflang="es" data-title="Amplitud modulada" data-language-autonym="Español" data-language-local-name="西班牙语" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/Amplituudmodulatsioon" title="Amplituudmodulatsioon – 爱沙尼亚语" lang="et" hreflang="et" data-title="Amplituudmodulatsioon" data-language-autonym="Eesti" data-language-local-name="爱沙尼亚语" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Anplitude_Modulatu" title="Anplitude Modulatu – 巴斯克语" lang="eu" hreflang="eu" data-title="Anplitude Modulatu" data-language-autonym="Euskara" data-language-local-name="巴斯克语" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D9%85%D8%AF%D9%88%D9%84%D9%87%E2%80%8C%D8%B3%D8%A7%D8%B2%DB%8C_%D8%AF%D8%A7%D9%85%D9%86%D9%87" title="مدوله‌سازی دامنه – 波斯语" lang="fa" hreflang="fa" data-title="مدوله‌سازی دامنه" data-language-autonym="فارسی" data-language-local-name="波斯语" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Amplitudimodulaatio" title="Amplitudimodulaatio – 芬兰语" lang="fi" hreflang="fi" data-title="Amplitudimodulaatio" data-language-autonym="Suomi" data-language-local-name="芬兰语" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Modulation_d%27amplitude" title="Modulation d'amplitude – 法语" lang="fr" hreflang="fr" data-title="Modulation d'amplitude" data-language-autonym="Français" data-language-local-name="法语" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-ga mw-list-item"><a href="https://ga.wikipedia.org/wiki/Modhn%C3%BA_aimpliti%C3%BAide" title="Modhnú aimplitiúide – 爱尔兰语" lang="ga" hreflang="ga" data-title="Modhnú aimplitiúide" data-language-autonym="Gaeilge" data-language-local-name="爱尔兰语" class="interlanguage-link-target"><span>Gaeilge</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%90%D7%A4%D7%A0%D7%95%D7%9F_%D7%9E%D7%A9%D7%A8%D7%A2%D7%AA" title="אפנון משרעת – 希伯来语" lang="he" hreflang="he" data-title="אפנון משרעת" data-language-autonym="עברית" data-language-local-name="希伯来语" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/Amplitudna_modulacija" title="Amplitudna modulacija – 克罗地亚语" lang="hr" hreflang="hr" data-title="Amplitudna modulacija" data-language-autonym="Hrvatski" data-language-local-name="克罗地亚语" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/Amplit%C3%BAd%C3%B3modul%C3%A1ci%C3%B3" title="Amplitúdómoduláció – 匈牙利语" lang="hu" hreflang="hu" data-title="Amplitúdómoduláció" data-language-autonym="Magyar" data-language-local-name="匈牙利语" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/%D4%B1%D5%B4%D5%BA%D5%AC%D5%AB%D5%BF%D5%B8%D6%82%D5%A4%D5%A1%D5%B5%D5%AB%D5%B6_%D5%B4%D5%B8%D5%A4%D5%B8%D6%82%D5%AC%D5%A1%D6%81%D5%AB%D5%A1" title="Ամպլիտուդային մոդուլացիա – 亚美尼亚语" lang="hy" hreflang="hy" data-title="Ամպլիտուդային մոդուլացիա" data-language-autonym="Հայերեն" data-language-local-name="亚美尼亚语" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Modulasi_amplitudo" title="Modulasi amplitudo – 印度尼西亚语" lang="id" hreflang="id" data-title="Modulasi amplitudo" data-language-autonym="Bahasa Indonesia" data-language-local-name="印度尼西亚语" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Modulazione_di_ampiezza" title="Modulazione di ampiezza – 意大利语" lang="it" hreflang="it" data-title="Modulazione di ampiezza" data-language-autonym="Italiano" data-language-local-name="意大利语" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E6%8C%AF%E5%B9%85%E5%A4%89%E8%AA%BF" title="振幅変調 – 日语" lang="ja" hreflang="ja" data-title="振幅変調" data-language-autonym="日本語" data-language-local-name="日语" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-kk mw-list-item"><a href="https://kk.wikipedia.org/wiki/%D0%90%D0%BC%D0%BF%D0%BB%D0%B8%D1%82%D1%83%D0%B4%D0%B0%D0%BB%D1%8B%D2%9B_%D0%BC%D0%BE%D0%B4%D1%83%D0%BB%D1%8F%D1%86%D0%B8%D1%8F" title="Амплитудалық модуляция – 哈萨克语" lang="kk" hreflang="kk" data-title="Амплитудалық модуляция" data-language-autonym="Қазақша" data-language-local-name="哈萨克语" class="interlanguage-link-target"><span>Қазақша</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EC%A7%84%ED%8F%AD_%EB%B3%80%EC%A1%B0" title="진폭 변조 – 韩语" lang="ko" hreflang="ko" data-title="진폭 변조" data-language-autonym="한국어" data-language-local-name="韩语" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/Amplit%C5%ABdas_modul%C4%81cija" title="Amplitūdas modulācija – 拉脱维亚语" lang="lv" hreflang="lv" data-title="Amplitūdas modulācija" data-language-autonym="Latviešu" data-language-local-name="拉脱维亚语" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%97%D0%B0%D0%BC%D0%B0%D0%B2%D0%BD%D0%B0_%D0%BC%D0%BE%D0%B4%D1%83%D0%BB%D0%B0%D1%86%D0%B8%D1%98%D0%B0" title="Замавна модулација – 马其顿语" lang="mk" hreflang="mk" data-title="Замавна модулација" data-language-autonym="Македонски" data-language-local-name="马其顿语" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-ml mw-list-item"><a href="https://ml.wikipedia.org/wiki/%E0%B4%86%E0%B4%82%E0%B4%AA%E0%B5%8D%E0%B4%B2%E0%B4%BF%E0%B4%B1%E0%B5%8D%E0%B4%B1%E0%B5%8D%E0%B4%AF%E0%B5%82%E0%B4%A1%E0%B5%8D_%E0%B4%AE%E0%B5%8B%E0%B4%A1%E0%B5%81%E0%B4%B2%E0%B5%87%E0%B4%B7%E0%B5%BB" title="ആംപ്ലിറ്റ്യൂഡ് മോഡുലേഷൻ – 马拉雅拉姆语" lang="ml" hreflang="ml" data-title="ആംപ്ലിറ്റ്യൂഡ് മോഡുലേഷൻ" data-language-autonym="മലയാളം" data-language-local-name="马拉雅拉姆语" class="interlanguage-link-target"><span>മലയാളം</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Modulasi_amplitud" title="Modulasi amplitud – 马来语" lang="ms" hreflang="ms" data-title="Modulasi amplitud" data-language-autonym="Bahasa Melayu" data-language-local-name="马来语" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Amplitudemodulatie" title="Amplitudemodulatie – 荷兰语" lang="nl" hreflang="nl" data-title="Amplitudemodulatie" data-language-autonym="Nederlands" data-language-local-name="荷兰语" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-nn mw-list-item"><a href="https://nn.wikipedia.org/wiki/Amplitudemodulasjon" title="Amplitudemodulasjon – 挪威尼诺斯克语" lang="nn" hreflang="nn" data-title="Amplitudemodulasjon" data-language-autonym="Norsk nynorsk" data-language-local-name="挪威尼诺斯克语" class="interlanguage-link-target"><span>Norsk nynorsk</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Amplitudemodulasjon" title="Amplitudemodulasjon – 书面挪威语" lang="nb" hreflang="nb" data-title="Amplitudemodulasjon" data-language-autonym="Norsk bokmål" data-language-local-name="书面挪威语" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Modulacja_amplitudy" title="Modulacja amplitudy – 波兰语" lang="pl" hreflang="pl" data-title="Modulacja amplitudy" data-language-autonym="Polski" data-language-local-name="波兰语" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Modula%C3%A7%C3%A3o_em_amplitude" title="Modulação em amplitude – 葡萄牙语" lang="pt" hreflang="pt" data-title="Modulação em amplitude" data-language-autonym="Português" data-language-local-name="葡萄牙语" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Modula%C8%9Bie_de_amplitudine" title="Modulație de amplitudine – 罗马尼亚语" lang="ro" hreflang="ro" data-title="Modulație de amplitudine" data-language-autonym="Română" data-language-local-name="罗马尼亚语" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%90%D0%BC%D0%BF%D0%BB%D0%B8%D1%82%D1%83%D0%B4%D0%BD%D0%B0%D1%8F_%D0%BC%D0%BE%D0%B4%D1%83%D0%BB%D1%8F%D1%86%D0%B8%D1%8F" title="Амплитудная модуляция – 俄语" lang="ru" hreflang="ru" data-title="Амплитудная модуляция" data-language-autonym="Русский" data-language-local-name="俄语" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sd mw-list-item"><a href="https://sd.wikipedia.org/wiki/%D8%A7%D9%8A%D9%85%D9%BE%D9%84%D9%8A%D9%BD%D9%8A%D9%88%DA%8A_%D9%85%D8%A7%DA%8A%D9%8A%D9%88%D9%84%D9%8A%D8%B4%D9%86" title="ايمپليٽيوڊ ماڊيوليشن – 信德语" lang="sd" hreflang="sd" data-title="ايمپليٽيوڊ ماڊيوليشن" data-language-autonym="سنڌي" data-language-local-name="信德语" class="interlanguage-link-target"><span>سنڌي</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/Amplitudska_modulacija" title="Amplitudska modulacija – 塞尔维亚-克罗地亚语" lang="sh" hreflang="sh" data-title="Amplitudska modulacija" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="塞尔维亚-克罗地亚语" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-si mw-list-item"><a href="https://si.wikipedia.org/wiki/%E0%B7%80%E0%B7%92%E0%B7%83%E0%B7%8A%E0%B6%AD%E0%B7%8F%E0%B6%BB_%E0%B6%B8%E0%B7%96%E0%B6%BB%E0%B7%8A%E0%B6%A2%E0%B6%B1%E0%B6%BA" title="විස්තාර මූර්ජනය – 僧伽罗语" lang="si" hreflang="si" data-title="විස්තාර මූර්ජනය" data-language-autonym="සිංහල" data-language-local-name="僧伽罗语" class="interlanguage-link-target"><span>සිංහල</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Amplitude_modulation" title="Amplitude modulation – Simple English" lang="en-simple" hreflang="en-simple" data-title="Amplitude modulation" data-language-autonym="Simple English" data-language-local-name="Simple English" class="interlanguage-link-target"><span>Simple English</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/Amplit%C3%BAdov%C3%A1_modul%C3%A1cia" title="Amplitúdová modulácia – 斯洛伐克语" lang="sk" hreflang="sk" data-title="Amplitúdová modulácia" data-language-autonym="Slovenčina" data-language-local-name="斯洛伐克语" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/Amplitudna_modulacija" title="Amplitudna modulacija – 斯洛文尼亚语" lang="sl" hreflang="sl" data-title="Amplitudna modulacija" data-language-autonym="Slovenščina" data-language-local-name="斯洛文尼亚语" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-sq mw-list-item"><a href="https://sq.wikipedia.org/wiki/Modulimi_i_amplitud%C3%ABs" title="Modulimi i amplitudës – 阿尔巴尼亚语" lang="sq" hreflang="sq" data-title="Modulimi i amplitudës" data-language-autonym="Shqip" data-language-local-name="阿尔巴尼亚语" class="interlanguage-link-target"><span>Shqip</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%90%D0%BC%D0%BF%D0%BB%D0%B8%D1%82%D1%83%D0%B4%D1%81%D0%BA%D0%B0_%D0%BC%D0%BE%D0%B4%D1%83%D0%BB%D0%B0%D1%86%D0%B8%D1%98%D0%B0" title="Амплитудска модулација – 塞尔维亚语" lang="sr" hreflang="sr" data-title="Амплитудска модулација" data-language-autonym="Српски / srpski" data-language-local-name="塞尔维亚语" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-su mw-list-item"><a href="https://su.wikipedia.org/wiki/Modulasi_amplitudo" title="Modulasi amplitudo – 巽他语" lang="su" hreflang="su" data-title="Modulasi amplitudo" data-language-autonym="Sunda" data-language-local-name="巽他语" class="interlanguage-link-target"><span>Sunda</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Amplitudmodulering" title="Amplitudmodulering – 瑞典语" lang="sv" hreflang="sv" data-title="Amplitudmodulering" data-language-autonym="Svenska" data-language-local-name="瑞典语" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-ta badge-Q17437798 badge-goodarticle mw-list-item" title="优良条目"><a href="https://ta.wikipedia.org/wiki/%E0%AE%B5%E0%AF%80%E0%AE%9A%E0%AF%8D%E0%AE%9A%E0%AF%81%E0%AE%AA%E0%AF%8D_%E0%AE%AA%E0%AE%A3%E0%AF%8D%E0%AE%AA%E0%AF%87%E0%AE%B1%E0%AF%8D%E0%AE%B1%E0%AE%AE%E0%AF%8D" title="வீச்சுப் பண்பேற்றம் – 泰米尔语" lang="ta" hreflang="ta" data-title="வீச்சுப் பண்பேற்றம்" data-language-autonym="தமிழ்" data-language-local-name="泰米尔语" class="interlanguage-link-target"><span>தமிழ்</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B8%81%E0%B8%B2%E0%B8%A3%E0%B8%81%E0%B8%A5%E0%B9%89%E0%B8%B3%E0%B9%81%E0%B8%AD%E0%B8%A1%E0%B8%9E%E0%B8%A5%E0%B8%B4%E0%B8%88%E0%B8%B9%E0%B8%94" title="การกล้ำแอมพลิจูด – 泰语" lang="th" hreflang="th" data-title="การกล้ำแอมพลิจูด" data-language-autonym="ไทย" data-language-local-name="泰语" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Genlik_mod%C3%BClasyonu" title="Genlik modülasyonu – 土耳其语" lang="tr" hreflang="tr" data-title="Genlik modülasyonu" data-language-autonym="Türkçe" data-language-local-name="土耳其语" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%90%D0%BC%D0%BF%D0%BB%D1%96%D1%82%D1%83%D0%B4%D0%BD%D0%B0_%D0%BC%D0%BE%D0%B4%D1%83%D0%BB%D1%8F%D1%86%D1%96%D1%8F" title="Амплітудна модуляція – 乌克兰语" lang="uk" hreflang="uk" data-title="Амплітудна модуляція" data-language-autonym="Українська" data-language-local-name="乌克兰语" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/%C4%90i%E1%BB%81u_ch%E1%BA%BF_bi%C3%AAn_%C4%91%E1%BB%99" title="Điều chế biên độ – 越南语" lang="vi" hreflang="vi" data-title="Điều chế biên độ" data-language-autonym="Tiếng Việt" data-language-local-name="越南语" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-wuu mw-list-item"><a href="https://wuu.wikipedia.org/wiki/%E5%B9%85%E5%BA%A6%E8%B0%83%E5%88%B6" title="幅度调制 – 吴语" lang="wuu" hreflang="wuu" data-title="幅度调制" data-language-autonym="吴语" data-language-local-name="吴语" class="interlanguage-link-target"><span>吴语</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q183755#sitelinks-wikipedia" title="编辑跨语言链接" class="wbc-editpage">编辑链接</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="命名空间"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-main" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/%E6%8C%AF%E5%B9%85%E8%AA%BF%E8%AE%8A" title="浏览条目正文[c]" accesskey="c"><span>条目</span></a></li><li id="ca-talk" class="vector-tab-noicon mw-list-item"><a href="/wiki/Talk:%E6%8C%AF%E5%B9%85%E8%AA%BF%E8%AE%8A" rel="discussion" 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(prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .ambox{border-left-color:#36c!important}html.skin-theme-clientpref-os .mw-parser-output .ambox-speedy,html.skin-theme-clientpref-os .mw-parser-output .ambox-delete{border-left-color:#b32424!important}html.skin-theme-clientpref-os .mw-parser-output .ambox-speedy{background-color:#300!important}html.skin-theme-clientpref-os .mw-parser-output .ambox-content{border-left-color:#f28500!important}html.skin-theme-clientpref-os .mw-parser-output .ambox-style{border-left-color:#fc3!important}html.skin-theme-clientpref-os .mw-parser-output .ambox-move{border-left-color:#9932cc!important}html.skin-theme-clientpref-os .mw-parser-output .ambox-protection{border-left-color:#a2a9b1!important}}</style><table class="box-问题条目 plainlinks metadata ambox ambox-content ambox-multiple_issues compact-ambox" role="presentation"><tbody><tr><td class="mbox-image"><div style="width:52px"><span typeof="mw:File"><span><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/b/b4/Ambox_important.svg/40px-Ambox_important.svg.png" decoding="async" width="40" height="40" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/b4/Ambox_important.svg/60px-Ambox_important.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/b4/Ambox_important.svg/80px-Ambox_important.svg.png 2x" data-file-width="40" data-file-height="40" /></span></span></div></td><td class="mbox-text"><div class="mbox-text-span"><div class="multiple-issues-text mw-collapsible"><b>本條目存在以下問題</b>，請協助<b><a class="external text" href="https://zh.wikipedia.org/w/index.php?title=%E6%8C%AF%E5%B9%85%E8%AA%BF%E8%AE%8A&action=edit">改善本條目</a></b>或在<b><a href="/wiki/Talk:%E6%8C%AF%E5%B9%85%E8%AA%BF%E8%AE%8A" title="Talk:振幅調變">討論頁</a></b>針對議題發表看法。 <div class="mw-collapsible-content"> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r83732972"><table class="box-Tone plainlinks metadata ambox ambox-style" role="presentation"><tbody><tr><td class="mbox-image"><div style="width:52px"><span typeof="mw:File"><span><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/f2/Edit-clear.svg/40px-Edit-clear.svg.png" decoding="async" width="40" height="40" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/f2/Edit-clear.svg/60px-Edit-clear.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/f2/Edit-clear.svg/80px-Edit-clear.svg.png 2x" data-file-width="48" data-file-height="48" /></span></span></div></td><td class="mbox-text"><div class="mbox-text-span">此條目的<b>语调或风格或許不适合百科全書。</b><span class="hide-when-compact"></span> <small class="date-container"><i>(<span class="date">2021年2月3日</span>)</i></small><span class="hide-when-compact"><br /><small>請根據<a href="/wiki/Wikipedia:%E6%9B%B4%E4%BC%98%E7%A7%80%E6%9D%A1%E7%9B%AE%E5%86%99%E4%BD%9C%E6%8C%87%E5%8D%97#寫作風格" title="Wikipedia:更优秀条目写作指南">指南</a>協助<a class="external text" href="https://zh.wikipedia.org/w/index.php?title=%E6%8C%AF%E5%B9%85%E8%AA%BF%E8%AE%8A&action=edit">改善这篇条目</a>，並在<a href="/wiki/Talk:%E6%8C%AF%E5%B9%85%E8%AA%BF%E8%AE%8A" title="Talk:振幅調變">讨论页</a>討論問題所在，加以改善。</small></span><span class="hide-when-compact"></span></div></td></tr></tbody></table> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r83732972"><table class="box-Refimprove plainlinks metadata ambox ambox-content" role="presentation"><tbody><tr><td class="mbox-image"><div style="width:52px"><span typeof="mw:File"><a href="/wiki/File:Tango-nosources.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/4/4e/Tango-nosources.svg/45px-Tango-nosources.svg.png" decoding="async" width="45" height="45" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/4e/Tango-nosources.svg/68px-Tango-nosources.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/4e/Tango-nosources.svg/90px-Tango-nosources.svg.png 2x" data-file-width="48" data-file-height="48" /></a></span></div></td><td class="mbox-text"><div class="mbox-text-span">此條目<b>需要补充更多<a href="/wiki/Wikipedia:%E5%88%97%E6%98%8E%E6%9D%A5%E6%BA%90" title="Wikipedia:列明来源">来源</a></b>。<span class="hide-when-compact"></span> <small class="date-container"><i>(<span class="date">2021年2月3日</span>)</i></small><span class="hide-when-compact"><br /><small>请协助補充多方面<a href="/wiki/Wikipedia:%E5%8F%AF%E9%9D%A0%E6%9D%A5%E6%BA%90" title="Wikipedia:可靠来源">可靠来源</a>以<a class="external text" href="https://zh.wikipedia.org/w/index.php?title=%E6%8C%AF%E5%B9%85%E8%AA%BF%E8%AE%8A&action=edit">改善这篇条目</a>，<a href="/wiki/Wikipedia:%E5%8F%AF%E4%BE%9B%E6%9F%A5%E8%AF%81" class="mw-redirect" title="Wikipedia:可供查证">无法查证</a>的内容可能會因為<a href="/wiki/Template:Fact" class="mw-redirect" title="Template:Fact">异议提出</a>而被移除。<br />致使用者：请搜索一下条目的标题（来源搜索：<span class="plainlinks"><a rel="nofollow" class="external text" href="//www.google.com/search?&as_eq=wikipedia&q=%22%E6%8C%AF%E5%B9%85%E8%AA%BF%E8%AE%8A%22">"振幅調變"</a> — <a rel="nofollow" class="external text" href="//www.google.com/search?q=%22%E6%8C%AF%E5%B9%85%E8%AA%BF%E8%AE%8A%22">网页</a>、<a rel="nofollow" class="external text" href="//www.google.com/search?tbm=nws&q=&as_src=-newswire+-wire+-presswire+-PR+-press+-release+-wikipedia&q=%22%E6%8C%AF%E5%B9%85%E8%AA%BF%E8%AE%8A%22">新闻</a>、<a rel="nofollow" class="external text" href="//books.google.com/books?&as_brr=0&as_pub=-icon&q=%22%E6%8C%AF%E5%B9%85%E8%AA%BF%E8%AE%8A%22">书籍</a>、<a rel="nofollow" class="external text" href="//scholar.google.com/scholar?&q=%22%E6%8C%AF%E5%B9%85%E8%AA%BF%E8%AE%8A%22">学术</a>、<a rel="nofollow" class="external text" href="//www.google.com/search?tbm=isch&safe=off&q=%22%E6%8C%AF%E5%B9%85%E8%AA%BF%E8%AE%8A%22">图像</a></span>），以检查网络上是否存在该主题的更多可靠来源（<a href="/wiki/Wikipedia:%E5%8F%AF%E9%9D%A0%E6%9D%A5%E6%BA%90" title="Wikipedia:可靠来源">判定指引</a>）。</small></span><span class="hide-when-compact"></span></div></td></tr></tbody></table> </div></div><span class="hide-when-compact"></span><span class="hide-when-compact"></span></div></td></tr></tbody></table> <div id="noteTA-77ded746" class="noteTA"><div class="noteTA-group"><div data-noteta-group-source="module" data-noteta-group="Electronics"></div><div data-noteta-group-source="module" data-noteta-group="Communication"></div></div></div> <style data-mw-deduplicate="TemplateStyles:r83732082">.mw-parser-output .infobox-subbox{padding:0;border:none;margin:-3px;width:auto;min-width:100%;font-size:100%;clear:none;float:none;background-color:transparent}.mw-parser-output .infobox-3cols-child{margin:auto}.mw-parser-output .infobox .navbar{font-size:100%}body.skin-minerva .mw-parser-output .infobox-header,body.skin-minerva .mw-parser-output .infobox-subheader,body.skin-minerva .mw-parser-output .infobox-above,body.skin-minerva .mw-parser-output .infobox-title,body.skin-minerva .mw-parser-output .infobox-image,body.skin-minerva .mw-parser-output .infobox-full-data,body.skin-minerva .mw-parser-output .infobox-below{text-align:center}@media screen{html.skin-theme-clientpref-night .mw-parser-output .infobox-full-data:not(.notheme)>div:not(.notheme)[style]{background:#1f1f23!important;color:#f8f9fa}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .infobox-full-data:not(.notheme) div:not(.notheme){background:#1f1f23!important;color:#f8f9fa}}html.skin-theme-clientpref-night .mw-parser-output .infobox td div:not(.notheme)[style]{background:transparent!important;color:var(--color-base,#202122)}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .infobox td div:not(.notheme)[style]{background:transparent!important;color:var(--color-base,#202122)}}html.skin-theme-clientpref-night .mw-parser-output .infobox td div.NavHead:not(.notheme)[style]{background:transparent!important}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .infobox td div.NavHead:not(.notheme)[style]{background:transparent!important}}@media(min-width:640px){body.skin--responsive .mw-parser-output .infobox-table{display:table!important}body.skin--responsive .mw-parser-output .infobox-table>caption{display:table-caption!important}body.skin--responsive .mw-parser-output .infobox-table>tbody{display:table-row-group}body.skin--responsive .mw-parser-output .infobox-table tr{display:table-row!important}body.skin--responsive .mw-parser-output .infobox-table th,body.skin--responsive .mw-parser-output .infobox-table td{padding-left:inherit;padding-right:inherit}}</style><table class="infobox" style="width:22.5em"><tbody><tr><td colspan="2" class="infobox-image"><span typeof="mw:File"><a href="/wiki/File:Modulation_categorization.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/e/e7/Modulation_categorization.svg/300px-Modulation_categorization.svg.png" decoding="async" width="300" height="72" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/e7/Modulation_categorization.svg/450px-Modulation_categorization.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/e7/Modulation_categorization.svg/600px-Modulation_categorization.svg.png 2x" data-file-width="1565" data-file-height="374" /></a></span></td></tr><tr><th colspan="2" class="infobox-header" style="background:#ccffcc;background:#bdb;font-size:medium;">調變方式</th></tr><tr><th colspan="2" class="infobox-header" style="background:#ccffcc;">連續調變</th></tr><tr><td colspan="2" class="infobox-full-data" style=""><table style="width: 100%; border-collapse: collapse; border-spacing: 0;"> <tbody><tr><th></th><th><span class="nowrap">调幅</span></th><th><span class="nowrap">调频</span></th><th><span class="nowrap">调角</span></th></tr><tr><td><span class="nowrap"><b>模拟</b></span></td><td><a class="mw-selflink selflink">AM</a><br /><small>（<a href="/wiki/%E5%8D%95%E8%BE%B9%E5%B8%A6%E8%B0%83%E5%88%B6" title="单边带调制">SSB</a> · <a href="/wiki/%E5%8F%8C%E8%BE%B9%E5%B8%A6%E6%8A%91%E5%88%B6%E8%BD%BD%E6%B3%A2%E4%BC%A0%E8%BE%93" title="双边带抑制载波传输">DSB</a>）</small></td><td><a href="/wiki/%E9%A2%91%E7%8E%87%E8%B0%83%E5%88%B6" title="频率调制">FM</a></td><td><a href="/wiki/%E7%9B%B8%E4%BD%8D%E8%B0%83%E5%88%B6" title="相位调制">PM</a></td></tr><tr><td><span class="nowrap"><b>数字</b></span></td><td><a href="/wiki/%E5%B9%85%E7%A7%BB%E9%94%AE%E6%8E%A7" title="幅移键控">ASK</a><br /><small>（<a href="/wiki/OOK" title="OOK">OOK</a> · <a href="/wiki/%E6%AD%A3%E4%BA%A4%E5%B9%85%E5%BA%A6%E8%B0%83%E5%88%B6" title="正交幅度调制">QAM</a>）</small></td><td><a href="/wiki/%E9%A0%BB%E7%8E%87%E5%81%8F%E7%A7%BB%E8%AA%BF%E8%AE%8A" title="頻率偏移調變">FSK</a><br /><small>（<a href="/wiki/%E6%9C%80%E5%B0%8F%E9%A2%91%E7%A7%BB%E9%94%AE%E6%8E%A7" title="最小频移键控">MSK</a> · <a href="/wiki/GFSK" title="GFSK">GFSK</a>）</small></td><td><a href="/wiki/%E7%9B%B8%E4%BD%8D%E5%81%8F%E7%A7%BB%E8%AA%BF%E8%AE%8A" title="相位偏移調變">PSK</a><br /><small>（<a href="/wiki/%E9%80%A3%E7%BA%8C%E7%9B%B8%E4%BD%8D%E8%AA%BF%E8%AE%8A" title="連續相位調變">CPM</a>）</small></td></tr><tr><td><span class="nowrap"><b>其他</b></span></td><td><span class="ilh-all" data-orig-title="空間調變" data-lang-code="en" data-lang-name="英语" data-foreign-title="Space modulation"><span class="ilh-page"><a href="/w/index.php?title=%E7%A9%BA%E9%96%93%E8%AA%BF%E8%AE%8A&action=edit&redlink=1" class="new" title="空間調變（页面不存在）">SM</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/Space_modulation" class="extiw" title="en:Space modulation"><span lang="en" dir="auto">Space modulation</span></a></span>）</span></span> （類比）</td></tr> </tbody></table></td></tr><tr><th colspan="2" class="infobox-header" style="background:#ccffcc;">脈衝調變</th></tr><tr><th scope="row" class="infobox-label" style="">模拟</th><td class="infobox-data" style=""><a href="/wiki/%E8%84%89%E5%86%B2%E5%B9%85%E5%BA%A6%E8%B0%83%E5%88%B6" class="mw-redirect" title="脉冲幅度调制">PAM</a> · <a href="/wiki/%E8%84%89%E5%86%B2%E5%AF%86%E5%BA%A6%E8%B0%83%E5%88%B6" title="脉冲密度调制">PDM</a> · <a href="/wiki/%E8%84%89%E5%86%B2%E4%BD%8D%E7%BD%AE%E8%B0%83%E5%88%B6" title="脉冲位置调制">PPM</a></td></tr><tr><th scope="row" class="infobox-label" style="">数字</th><td class="infobox-data" style=""><a href="/wiki/%E8%84%88%E8%A1%9D%E7%B7%A8%E7%A2%BC%E8%AA%BF%E8%AE%8A" title="脈衝編碼調變">PCM</a> · <a href="/wiki/%E8%84%88%E8%A1%9D%E5%AF%AC%E5%BA%A6%E8%AA%BF%E8%AE%8A" title="脈衝寬度調變">PWM</a></td></tr><tr><th colspan="2" class="infobox-header" style="background:#ccffcc;"><a href="/wiki/%E6%89%A9%E9%A2%91" title="扩频">扩频</a></th></tr><tr><td colspan="2" class="infobox-full-data" style=""><span class="ilh-all" data-orig-title="線性調頻展頻" data-lang-code="en" data-lang-name="英语" data-foreign-title="Chirp spread spectrum"><span class="ilh-page"><a href="/w/index.php?title=%E7%B7%9A%E6%80%A7%E8%AA%BF%E9%A0%BB%E5%B1%95%E9%A0%BB&action=edit&redlink=1" class="new" title="線性調頻展頻（页面不存在）">CSS</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/Chirp_spread_spectrum" class="extiw" title="en:Chirp spread spectrum"><span lang="en" dir="auto">Chirp spread spectrum</span></a></span>）</span></span> · <a href="/wiki/%E7%9B%B4%E6%8E%A5%E5%BA%8F%E5%88%97%E6%89%A9%E9%A2%91" title="直接序列扩频">DSSS</a> · <span class="ilh-all" data-orig-title="跳時展頻" data-lang-code="en" data-lang-name="英语" data-foreign-title="Time-hopping"><span class="ilh-page"><a href="/w/index.php?title=%E8%B7%B3%E6%99%82%E5%B1%95%E9%A0%BB&action=edit&redlink=1" class="new" title="跳時展頻（页面不存在）">THSS</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/Time-hopping" class="extiw" title="en:Time-hopping"><span lang="en" dir="auto">Time-hopping</span></a></span>）</span></span> · <a href="/wiki/%E8%B7%B3%E9%A2%91%E6%89%A9%E9%A2%91" title="跳频扩频">FHSS</a></td></tr><tr><th colspan="2" class="infobox-header" style="background:#ccffcc;">另見</th></tr><tr><td colspan="2" class="infobox-full-data" style=""><a href="/wiki/%E8%AA%BF%E8%AE%8A" title="調變">調變</a> · <a href="/wiki/%E7%BA%BF%E8%B7%AF%E7%A0%81" title="线路码">线路码</a> · <a href="/wiki/%E8%B0%83%E5%88%B6%E8%A7%A3%E8%B0%83%E5%99%A8" title="调制解调器">调制解调器</a> · <a href="/wiki/%CE%94%CE%A3%E8%AA%BF%E8%AE%8A" title="ΔΣ調變">ΔΣ調變</a> · <a href="/wiki/%E6%AD%A3%E4%BA%A4%E9%A0%BB%E5%88%86%E5%A4%8D%E7%94%A8" title="正交頻分复用">OFDM</a> · <a href="/wiki/%E9%A2%91%E5%88%86%E5%A4%9A%E8%B7%AF%E5%A4%8D%E7%94%A8" title="频分多路复用">FDM</a></td></tr><tr><td colspan="2" class="infobox-navbar"><style data-mw-deduplicate="TemplateStyles:r84265675">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist ul{margin:0;padding:0}.mw-parser-output .hlist dd,.mw-parser-output .hlist dt,.mw-parser-output .hlist li{margin:0;display:inline}.mw-parser-output .hlist.inline,.mw-parser-output .hlist.inline dl,.mw-parser-output .hlist.inline ol,.mw-parser-output .hlist.inline ul,.mw-parser-output .hlist dl dl,.mw-parser-output .hlist dl ol,.mw-parser-output .hlist dl ul,.mw-parser-output .hlist ol dl,.mw-parser-output .hlist ol ol,.mw-parser-output .hlist ol ul,.mw-parser-output .hlist ul dl,.mw-parser-output .hlist ul ol,.mw-parser-output .hlist ul ul{display:inline}.mw-parser-output .hlist .mw-empty-li{display:none}.mw-parser-output .hlist dt::after{content:" :"}.mw-parser-output .hlist dd::after,.mw-parser-output .hlist li::after{content:" · ";font-weight:bold}.mw-parser-output .hlist-pipe dd::after,.mw-parser-output .hlist-pipe li::after{content:" | ";font-weight:normal}.mw-parser-output .hlist-hyphen dd::after,.mw-parser-output .hlist-hyphen li::after{content:" - ";font-weight:normal}.mw-parser-output .hlist-comma dd::after,.mw-parser-output .hlist-comma li::after{content:"、";font-weight:normal}.mw-parser-output .hlist dd:last-child::after,.mw-parser-output .hlist dt:last-child::after,.mw-parser-output .hlist li:last-child::after{content:none}.mw-parser-output .hlist ol{counter-reset:listitem}.mw-parser-output .hlist ol>li{counter-increment:listitem}.mw-parser-output .hlist ol>li::before{content:" "counter(listitem)"\a0 "}.mw-parser-output .hlist dd ol>li:first-child::before,.mw-parser-output .hlist dt ol>li:first-child::before,.mw-parser-output .hlist li ol>li:first-child::before{content:"（"counter(listitem)"\a0 "}.mw-parser-output ul.cslist,.mw-parser-output ul.sslist{margin:0;padding:0;display:inline-block;list-style:none}.mw-parser-output .cslist li,.mw-parser-output .sslist li{margin:0;display:inline-block}.mw-parser-output .cslist li::after{content:"，"}.mw-parser-output .sslist li::after{content:"；"}.mw-parser-output .cslist li:last-child::after,.mw-parser-output .sslist li:last-child::after{content:none}</style><style data-mw-deduplicate="TemplateStyles:r84244141">.mw-parser-output .navbar{display:inline;font-weight:normal}.mw-parser-output .navbar-collapse{float:left;text-align:left}.mw-parser-output .navbar-boxtext{word-spacing:0}.mw-parser-output .navbar ul{display:inline-block;white-space:nowrap;line-height:inherit}.mw-parser-output .navbar-brackets::before{margin-right:-0.125em;content:"[ "}.mw-parser-output .navbar-brackets::after{margin-left:-0.125em;content:" ]"}.mw-parser-output .navbar li{word-spacing:-0.125em}.mw-parser-output .navbar a>span,.mw-parser-output .navbar a>abbr{text-decoration:inherit}.mw-parser-output .navbar-mini abbr{font-variant:small-caps;border-bottom:none;text-decoration:none;cursor:inherit}.mw-parser-output .navbar-ct-full{font-size:110%;margin:0 8em}.mw-parser-output .navbar-ct-mini{font-size:110%;margin:0 5em}html.skin-theme-clientpref-night .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}@media(prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}}@media print{.mw-parser-output .navbar{display:none!important}}</style><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Modulation_techniques" title="Template:Modulation techniques"><abbr title="查看该模板">查</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Modulation_techniques" title="Template talk:Modulation techniques"><abbr title="讨论该模板">论</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:%E7%BC%96%E8%BE%91%E9%A1%B5%E9%9D%A2/Template:Modulation_techniques" title="Special:编辑页面/Template:Modulation techniques"><abbr title="编辑该模板">编</abbr></a></li></ul></div></td></tr></tbody></table> <p><b>振幅調變</b>（<b>Amplitude Modulation</b>，<b>AM</b>），簡稱<b>调幅</b>，是电子通訊使用的一种<a href="/wiki/%E8%AA%BF%E8%AE%8A" title="調變">調變</a>方法，最常用于<a href="/wiki/%E6%97%A0%E7%BA%BF%E7%94%B5" title="无线电">无线电</a><a href="/wiki/%E8%BD%BD%E6%B3%A2" title="载波">载波</a>传输訊息。在振幅调制，载波的<a href="/wiki/%E6%8C%AF%E5%B9%85" title="振幅">振幅</a>（訊号强度）与发送波形成比例变化。例如，波形可能是对应<a href="/wiki/%E6%8F%9A%E8%81%B2%E5%99%A8" title="揚聲器">揚聲器</a>的聲音，也可能是對應电视像素的光强度。这方法与<a href="/wiki/%E8%BD%BD%E6%B3%A2" title="载波">载波</a><a href="/wiki/%E9%A0%BB%E7%8E%87_(%E7%89%A9%E7%90%86%E5%AD%B8)" title="頻率 (物理學)">頻率</a>变化的<a href="/wiki/%E9%A2%91%E7%8E%87%E8%B0%83%E5%88%B6" title="频率调制">频率调制</a>，以及<a href="/wiki/%E7%9B%B8%E4%BD%8D" title="相位">相位</a>变化的<a href="/wiki/%E7%9B%B8%E4%BD%8D%E8%B0%83%E5%88%B6" title="相位调制">相位调制</a>均形成对比。 </p><p>AM是最早用于通过无线电传送声音的调制方法。它在20世纪前二十年间发展，开始于Roberto Landell De Moura与<a href="/wiki/%E8%8C%83%E4%BF%A1%E9%81%94" title="范信達">范信達</a>在1900年的<a href="/wiki/%E7%84%A1%E7%B7%9A%E9%9B%BB%E8%A9%B1" class="mw-disambig" title="無線電話">无线电话</a>实验。<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>今天仍在多种通訊形式中使用，如用在便携<span class="ilh-all" data-orig-title="双向无线电通信" data-lang-code="en" data-lang-name="英语" data-foreign-title="two way radio"><span class="ilh-page"><a href="/w/index.php?title=%E5%8F%8C%E5%90%91%E6%97%A0%E7%BA%BF%E7%94%B5%E9%80%9A%E4%BF%A1&action=edit&redlink=1" class="new" title="双向无线电通信（页面不存在）">对讲机</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/two_way_radio" class="extiw" title="en:two way radio"><span lang="en" dir="auto">two way radio</span></a></span>）</span></span>、<a href="/wiki/%E6%B3%A2%E6%AE%B5" title="波段">VHF航空无线电</a>、<span class="ilh-all" data-orig-title="公民波段无线电" data-lang-code="en" data-lang-name="英语" data-foreign-title="Citizen's Band Radio"><span class="ilh-page"><a href="/w/index.php?title=%E5%85%AC%E6%B0%91%E6%B3%A2%E6%AE%B5%E6%97%A0%E7%BA%BF%E7%94%B5&action=edit&redlink=1" class="new" title="公民波段无线电（页面不存在）">公民波段无线电</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/Citizen%27s_Band_Radio" class="extiw" title="en:Citizen's Band Radio"><span lang="en" dir="auto">Citizen's Band Radio</span></a></span>）</span></span>与电脑<a href="/wiki/%E8%B0%83%E5%88%B6%E8%A7%A3%E8%B0%83%E5%99%A8" title="调制解调器">调制解调器</a>中。<style data-mw-deduplicate="TemplateStyles:r83946278">.mw-parser-output .template-facttext{background-color:var(--background-color-neutral,#eaecf0);color:inherit;margin:-.3em 0;padding:.3em 0}</style><sup class="noprint Template-Fact"><a href="/wiki/Wikipedia:%E5%88%97%E6%98%8E%E6%9D%A5%E6%BA%90" title="Wikipedia:列明来源"><span style="white-space: nowrap;" title="来源请求。">[來源請求]</span></a></sup>“AM”通常指<a href="/wiki/%E4%B8%AD%E6%B3%A2" title="中波">中波</a><a href="/wiki/%E8%AA%BF%E5%B9%85%E5%BB%A3%E6%92%AD" title="調幅廣播">调幅无线电广播</a>。 </p> <figure class="mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/File:Amfm3-en-de.gif" class="mw-file-description"><img alt="音频、调幅和调频载波的动画。" src="//upload.wikimedia.org/wikipedia/commons/thumb/a/a4/Amfm3-en-de.gif/250px-Amfm3-en-de.gif" decoding="async" width="250" height="195" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/a/a4/Amfm3-en-de.gif 1.5x" data-file-width="256" data-file-height="200" /></a><figcaption>图1：音频訊号（最上面）可由载波频率使用调幅或调频方式承载。</figcaption></figure> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="示意圖"><span id=".E7.A4.BA.E6.84.8F.E5.9C.96"></span>示意圖</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%E6%8C%AF%E5%B9%85%E8%AA%BF%E8%AE%8A&action=edit&section=1" title="编辑章节：示意圖"><span>编辑</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>簡單的振幅調變示意圖如下： </p> <figure class="mw-halign-center" typeof="mw:File/Thumb"><a href="/wiki/File:Amplitude_modulation.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/6/6f/Amplitude_modulation.png/600px-Amplitude_modulation.png" decoding="async" width="600" height="101" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/6f/Amplitude_modulation.png/900px-Amplitude_modulation.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/6f/Amplitude_modulation.png/1200px-Amplitude_modulation.png 2x" data-file-width="2400" data-file-height="405" /></a><figcaption></figcaption></figure> <p>振幅調變的訊號No.4就是(No.1+No.2)×No.3得來。 </p> <div class="mw-heading mw-heading2"><h2 id="交換調變器(switching_modulator)"><span id=".E4.BA.A4.E6.8F.9B.E8.AA.BF.E8.AE.8A.E5.99.A8.28switching_modulator.29"></span>交換調變器(switching modulator)</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%E6%8C%AF%E5%B9%85%E8%AA%BF%E8%AE%8A&action=edit&section=2" title="编辑章节：交換調變器(switching modulator)"><span>编辑</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>交換調變器是一種產生AM波的方法。假設接到二極體的載波<span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle c(t)}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>c</mi> <mo stretchy="false">(</mo> <mi>t</mi> <mo stretchy="false">)</mo> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle c(t)}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/6e77d04462d26c4fdbfe8f988b182babd15059df" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:3.656ex; height:2.843ex;" alt="{\displaystyle c(t)}"></span>振幅大到它可以在二極體特性曲線兩邊來回震盪，而且二極體是理想開關，在順向偏壓時<a href="/wiki/%E9%98%BB%E6%8A%97" title="阻抗">阻抗</a>為零。這樣就可以用片段线性來近似這個二極體與負載電阻組合的轉換特性。 </p> <div class="mw-heading mw-heading2"><h2 id="标准AM的简化分析"><span id=".E6.A0.87.E5.87.86AM.E7.9A.84.E7.AE.80.E5.8C.96.E5.88.86.E6.9E.90"></span>标准AM的简化分析</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%E6%8C%AF%E5%B9%85%E8%AA%BF%E8%AE%8A&action=edit&section=3" title="编辑章节：标准AM的简化分析"><span>编辑</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure typeof="mw:File/Thumb"><a href="/wiki/File:Illustration_of_Amplitude_Modulation.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/8/8d/Illustration_of_Amplitude_Modulation.png/391px-Illustration_of_Amplitude_Modulation.png" decoding="async" width="391" height="152" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/8d/Illustration_of_Amplitude_Modulation.png/587px-Illustration_of_Amplitude_Modulation.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/8d/Illustration_of_Amplitude_Modulation.png/782px-Illustration_of_Amplitude_Modulation.png 2x" data-file-width="797" data-file-height="310" /></a><figcaption>幅度调制图解</figcaption></figure> <p>考虑以下频率<span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle f_{c}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>f</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>c</mi> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle f_{c}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/d2b64a46c31800830b9fecc59b22812390e18c05" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:2.083ex; height:2.509ex;" alt="{\displaystyle f_{c}}"></span>，幅度<span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle A}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>A</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle A}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/7daff47fa58cdfd29dc333def748ff5fa4c923e3" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:1.743ex; height:2.176ex;" alt="{\displaystyle A}"></span>的载波（正弦波）： </p> <dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle c(t)=A\cdot \sin(2\pi f_{c}t)\,}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>c</mi> <mo stretchy="false">(</mo> <mi>t</mi> <mo stretchy="false">)</mo> <mo>=</mo> <mi>A</mi> <mo>⋅</mo> <mi>sin</mi> <mo>⁡</mo> <mo stretchy="false">(</mo> <mn>2</mn> <mi>π</mi> <msub> <mi>f</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>c</mi> </mrow> </msub> <mi>t</mi> <mo stretchy="false">)</mo> <mspace width="thinmathspace" /> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle c(t)=A\cdot \sin(2\pi f_{c}t)\,}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/5effd49ad74d1abd3bab395f6752f7dd9c496830" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:20.646ex; height:2.843ex;" alt="{\displaystyle c(t)=A\cdot \sin(2\pi f_{c}t)\,}"></span>.</dd></dl> <p><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle m(t)}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>m</mi> <mo stretchy="false">(</mo> <mi>t</mi> <mo stretchy="false">)</mo> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle m(t)}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/ea26578dd72bf4dbc3fa391c9feb11eed495699b" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:4.689ex; height:2.843ex;" alt="{\displaystyle m(t)}"></span>是调制波形。此例只須用比<span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle f_{c}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>f</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>c</mi> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle f_{c}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/d2b64a46c31800830b9fecc59b22812390e18c05" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:2.083ex; height:2.509ex;" alt="{\displaystyle f_{c}}"></span>小很多，频率为<span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle f_{m}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>f</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>m</mi> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle f_{m}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/a86985ce29664569bf891b3c2e1350792aa04e7e" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:2.814ex; height:2.509ex;" alt="{\displaystyle f_{m}}"></span>的正弦波调制： </p> <dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle m(t)=M\cdot \cos(2\pi f_{m}t+\phi )\,}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>m</mi> <mo stretchy="false">(</mo> <mi>t</mi> <mo stretchy="false">)</mo> <mo>=</mo> <mi>M</mi> <mo>⋅</mo> <mi>cos</mi> <mo>⁡</mo> <mo stretchy="false">(</mo> <mn>2</mn> <mi>π</mi> <msub> <mi>f</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>m</mi> </mrow> </msub> <mi>t</mi> <mo>+</mo> <mi>ϕ</mi> <mo stretchy="false">)</mo> <mspace width="thinmathspace" /> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle m(t)=M\cdot \cos(2\pi f_{m}t+\phi )\,}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/23c593cbaaef765c46166042e8ee97cade1338b8" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:27.591ex; height:2.843ex;" alt="{\displaystyle m(t)=M\cdot \cos(2\pi f_{m}t+\phi )\,}"></span>，</dd></dl> <p><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle M}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>M</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle M}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/f82cade9898ced02fdd08712e5f0c0151758a0dd" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:2.442ex; height:2.176ex;" alt="{\displaystyle M}"></span>是调制幅度。我们須让<span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle M<1}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>M</mi> <mo><</mo> <mn>1</mn> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle M<1}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/00d56f96a7a8ab0135d60ff13b07d0e23450fc04" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:6.703ex; height:2.176ex;" alt="{\displaystyle M<1}"></span>以使<span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle 1+m(t)}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mn>1</mn> <mo>+</mo> <mi>m</mi> <mo stretchy="false">(</mo> <mi>t</mi> <mo stretchy="false">)</mo> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle 1+m(t)}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/772827c976a6d004743ce64b4ef25b30b87ad462" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:8.692ex; height:2.843ex;" alt="{\displaystyle 1+m(t)}"></span>总是正数，若<span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle M>1}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>M</mi> <mo>></mo> <mn>1</mn> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle M>1}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/33a2361899c50805724826ee4c3de1ff32418e8d" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:6.703ex; height:2.176ex;" alt="{\displaystyle M>1}"></span>则会出现过调制，从传输訊号中重构消息訊号会使原始訊号丢失。幅度调制的结果就是载波<span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle c(t)}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>c</mi> <mo stretchy="false">(</mo> <mi>t</mi> <mo stretchy="false">)</mo> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle c(t)}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/6e77d04462d26c4fdbfe8f988b182babd15059df" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:3.656ex; height:2.843ex;" alt="{\displaystyle c(t)}"></span>乘以正数<span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle 1+m(t)}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mn>1</mn> <mo>+</mo> <mi>m</mi> <mo stretchy="false">(</mo> <mi>t</mi> <mo stretchy="false">)</mo> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle 1+m(t)}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/772827c976a6d004743ce64b4ef25b30b87ad462" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:8.692ex; height:2.843ex;" alt="{\displaystyle 1+m(t)}"></span>： </p> <dl><dd><table> <tbody><tr> <td><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle y(t)\,}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>y</mi> <mo stretchy="false">(</mo> <mi>t</mi> <mo stretchy="false">)</mo> <mspace width="thinmathspace" /> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle y(t)\,}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/4462e466f2f25e18ce855cb8023006c5feaba51a" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:4.191ex; height:2.843ex;" alt="{\displaystyle y(t)\,}"></span> </td> <td><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle =[1+m(t)]\cdot c(t)\,}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mo>=</mo> <mo stretchy="false">[</mo> <mn>1</mn> <mo>+</mo> <mi>m</mi> <mo stretchy="false">(</mo> <mi>t</mi> <mo stretchy="false">)</mo> <mo stretchy="false">]</mo> <mo>⋅</mo> <mi>c</mi> <mo stretchy="false">(</mo> <mi>t</mi> <mo stretchy="false">)</mo> <mspace width="thinmathspace" /> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle =[1+m(t)]\cdot c(t)\,}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/d59c65c5bb0696d1acde782242ae8a30f9f67991" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:18.161ex; height:2.843ex;" alt="{\displaystyle =[1+m(t)]\cdot c(t)\,}"></span> </td></tr> <tr> <td> </td> <td><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle =[1+M\cdot \cos(2\pi f_{m}t+\phi )]\cdot A\cdot \sin(2\pi f_{c}t)}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mo>=</mo> <mo stretchy="false">[</mo> <mn>1</mn> <mo>+</mo> <mi>M</mi> <mo>⋅</mo> <mi>cos</mi> <mo>⁡</mo> <mo stretchy="false">(</mo> <mn>2</mn> <mi>π</mi> <msub> <mi>f</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>m</mi> </mrow> </msub> <mi>t</mi> <mo>+</mo> <mi>ϕ</mi> <mo stretchy="false">)</mo> <mo stretchy="false">]</mo> <mo>⋅</mo> <mi>A</mi> <mo>⋅</mo> <mi>sin</mi> <mo>⁡</mo> <mo stretchy="false">(</mo> <mn>2</mn> <mi>π</mi> <msub> <mi>f</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>c</mi> </mrow> </msub> <mi>t</mi> <mo stretchy="false">)</mo> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle =[1+M\cdot \cos(2\pi f_{m}t+\phi )]\cdot A\cdot \sin(2\pi f_{c}t)}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/832d815150b2320100954829f25c9ad24632e544" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:42.349ex; height:2.843ex;" alt="{\displaystyle =[1+M\cdot \cos(2\pi f_{m}t+\phi )]\cdot A\cdot \sin(2\pi f_{c}t)}"></span> </td></tr></tbody></table></dd></dl> <p>在这简单情形<span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle M}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>M</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle M}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/f82cade9898ced02fdd08712e5f0c0151758a0dd" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:2.442ex; height:2.176ex;" alt="{\displaystyle M}"></span>与<a href="#调制指数">调制指数</a>相同。当<span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle M=0.5}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>M</mi> <mo>=</mo> <mn>0.5</mn> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle M=0.5}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/31a73e9c61745f99d86b772a5056b10b627f352f" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:8.512ex; height:2.176ex;" alt="{\displaystyle M=0.5}"></span>，调幅訊号<span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle y(t)}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>y</mi> <mo stretchy="false">(</mo> <mi>t</mi> <mo stretchy="false">)</mo> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle y(t)}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/397de1edef5bf2ee15c020f325d7d781a3aa7f50" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:3.804ex; height:2.843ex;" alt="{\displaystyle y(t)}"></span>对应图4中最上面的图（标记为“50%调制”）。 </p><p>运用积化和差恒等式，<span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle y(t)}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>y</mi> <mo stretchy="false">(</mo> <mi>t</mi> <mo stretchy="false">)</mo> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle y(t)}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/397de1edef5bf2ee15c020f325d7d781a3aa7f50" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:3.804ex; height:2.843ex;" alt="{\displaystyle y(t)}"></span>可用三波<a href="/wiki/%E6%AD%A3%E5%BC%A6%E6%B3%A2" class="mw-redirect" title="正弦波">正弦波</a>的和表示： </p> <dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle y(t)=A\cdot \sin(2\pi f_{c}t)+{\begin{matrix}{\frac {AM}{2}}\end{matrix}}\left[\sin(2\pi (f_{c}+f_{m})t+\phi )+\sin(2\pi (f_{c}-f_{m})t-\phi )\right].\,}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>y</mi> <mo stretchy="false">(</mo> <mi>t</mi> <mo stretchy="false">)</mo> <mo>=</mo> <mi>A</mi> <mo>⋅</mo> <mi>sin</mi> <mo>⁡</mo> <mo stretchy="false">(</mo> <mn>2</mn> <mi>π</mi> <msub> <mi>f</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>c</mi> </mrow> </msub> <mi>t</mi> <mo stretchy="false">)</mo> <mo>+</mo> <mrow class="MJX-TeXAtom-ORD"> <mtable rowspacing="4pt" columnspacing="1em"> <mtr> <mtd> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mrow> <mi>A</mi> <mi>M</mi> </mrow> <mn>2</mn> </mfrac> </mrow> </mtd> </mtr> </mtable> </mrow> <mrow> <mo>[</mo> <mrow> <mi>sin</mi> <mo>⁡</mo> <mo stretchy="false">(</mo> <mn>2</mn> <mi>π</mi> <mo stretchy="false">(</mo> <msub> <mi>f</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>c</mi> </mrow> </msub> <mo>+</mo> <msub> <mi>f</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>m</mi> </mrow> </msub> <mo stretchy="false">)</mo> <mi>t</mi> <mo>+</mo> <mi>ϕ</mi> <mo stretchy="false">)</mo> <mo>+</mo> <mi>sin</mi> <mo>⁡</mo> <mo stretchy="false">(</mo> <mn>2</mn> <mi>π</mi> <mo stretchy="false">(</mo> <msub> <mi>f</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>c</mi> </mrow> </msub> <mo>−</mo> <msub> <mi>f</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>m</mi> </mrow> </msub> <mo stretchy="false">)</mo> <mi>t</mi> <mo>−</mo> <mi>ϕ</mi> <mo stretchy="false">)</mo> </mrow> <mo>]</mo> </mrow> <mo>.</mo> <mspace width="thinmathspace" /> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle y(t)=A\cdot \sin(2\pi f_{c}t)+{\begin{matrix}{\frac {AM}{2}}\end{matrix}}\left[\sin(2\pi (f_{c}+f_{m})t+\phi )+\sin(2\pi (f_{c}-f_{m})t-\phi )\right].\,}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/3ba6c481488d128f98d75d102d31147c507a0b6e" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.009ex; margin-bottom: -0.329ex; width:77.282ex; height:3.843ex;" alt="{\displaystyle y(t)=A\cdot \sin(2\pi f_{c}t)+{\begin{matrix}{\frac {AM}{2}}\end{matrix}}\left[\sin(2\pi (f_{c}+f_{m})t+\phi )+\sin(2\pi (f_{c}-f_{m})t-\phi )\right].\,}"></span></dd></dl> <p>因此，调制訊号有三部份：载波<span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle c(t)}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>c</mi> <mo stretchy="false">(</mo> <mi>t</mi> <mo stretchy="false">)</mo> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle c(t)}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/6e77d04462d26c4fdbfe8f988b182babd15059df" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:3.656ex; height:2.843ex;" alt="{\displaystyle c(t)}"></span>没有变，还有频率略高和略低于载波频率<span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle f_{c}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>f</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>c</mi> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle f_{c}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/d2b64a46c31800830b9fecc59b22812390e18c05" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:2.083ex; height:2.509ex;" alt="{\displaystyle f_{c}}"></span>的两波纯正弦波（称为<a href="/wiki/%E8%BE%B9%E5%B8%A6" title="边带">边带</a>）。 </p> <div class="mw-heading mw-heading2"><h2 id="解调方法"><span id=".E8.A7.A3.E8.B0.83.E6.96.B9.E6.B3.95"></span><span class="anchor" id="AM_demodulation_methods"></span>解调方法</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%E6%8C%AF%E5%B9%85%E8%AA%BF%E8%AE%8A&action=edit&section=4" title="编辑章节：解调方法"><span>编辑</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>调幅解调器的最简单的形式包括一支充当<a href="/wiki/%E5%8C%85%E7%BB%9C%E6%A3%80%E6%B3%A2%E5%99%A8" title="包络检波器">包络检波器</a>的二极管。另一种解调器——<span class="ilh-all" data-orig-title="乘积检波器" data-lang-code="en" data-lang-name="英语" data-foreign-title="product detector"><span class="ilh-page"><a href="/w/index.php?title=%E4%B9%98%E7%A7%AF%E6%A3%80%E6%B3%A2%E5%99%A8&action=edit&redlink=1" class="new" title="乘积检波器（页面不存在）">乘积检波器</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/product_detector" class="extiw" title="en:product detector"><span lang="en" dir="auto">product detector</span></a></span>）</span></span>的电路更复杂，但能提供更好的解调品質。 </p> <div class="mw-heading mw-heading2"><h2 id="優點"><span id=".E5.84.AA.E9.BB.9E"></span>優點</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%E6%8C%AF%E5%B9%85%E8%AA%BF%E8%AE%8A&action=edit&section=5" title="编辑章节：優點"><span>编辑</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>調幅是最早發明的調變方式，優點是容易產生及恢復訊號；可在發射器用交換調變器或平方率調變器（square-law modulator）來完成調變；可在接收器用波封檢測器或平方率檢測器（square-law detector）來完成解調。調幅系統成本十分低廉，AM無線電廣播非常受歡迎。 </p> <div class="mw-heading mw-heading2"><h2 id="缺點"><span id=".E7.BC.BA.E9.BB.9E"></span>缺點</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%E6%8C%AF%E5%B9%85%E8%AA%BF%E8%AE%8A&action=edit&section=6" title="编辑章节：缺點"><span>编辑</span></a><span class="mw-editsection-bracket">]</span></span></div> <ol><li>浪費功率 <dl><dd>載波<span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle c(t)}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>c</mi> <mo stretchy="false">(</mo> <mi>t</mi> <mo stretchy="false">)</mo> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle c(t)}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/6e77d04462d26c4fdbfe8f988b182babd15059df" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:3.656ex; height:2.843ex;" alt="{\displaystyle c(t)}"></span>與帶有資訊的基頻訊號<span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle m(t)}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>m</mi> <mo stretchy="false">(</mo> <mi>t</mi> <mo stretchy="false">)</mo> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle m(t)}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/ea26578dd72bf4dbc3fa391c9feb11eed495699b" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:4.689ex; height:2.843ex;" alt="{\displaystyle m(t)}"></span>不相關，傳輸載波就會浪費功率，也就是說在調幅的總功率中，一部分真正受<span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle m(t)}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>m</mi> <mo stretchy="false">(</mo> <mi>t</mi> <mo stretchy="false">)</mo> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle m(t)}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/ea26578dd72bf4dbc3fa391c9feb11eed495699b" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:4.689ex; height:2.843ex;" alt="{\displaystyle m(t)}"></span>影響，另一部分是浪費的。</dd></dl></li> <li>浪費頻寬 <dl><dd>AM波上邊帶及下邊帶相互對稱於載波頻率，知道其中一組邊帶的振幅譜及相位譜就知道另一組，也表示資訊傳輸時，其實只有一組邊帶就夠，通道也因此只須提供基頻訊號的頻寬，所以從這觀點來看，調幅所需的傳輸頻寬是訊息頻寬的兩倍，可說是浪費頻寬。</dd></dl></li></ol> <div class="mw-heading mw-heading2"><h2 id="調幅的變化形式"><span id=".E8.AA.BF.E5.B9.85.E7.9A.84.E8.AE.8A.E5.8C.96.E5.BD.A2.E5.BC.8F"></span>調幅的變化形式</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%E6%8C%AF%E5%B9%85%E8%AA%BF%E8%AE%8A&action=edit&section=7" title="编辑章节：調幅的變化形式"><span>编辑</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>要克服調幅的缺點可以修改調幅過程，但這樣改往往會令系統更複雜，也就是說我們在犧牲系統複雜度來使通訊資源能夠更好的使用。 </p> <ol><li><a href="/wiki/%E5%8F%8C%E8%BE%B9%E5%B8%A6%E6%8A%91%E5%88%B6%E8%BD%BD%E6%B3%A2%E4%BC%A0%E8%BE%93" title="双边带抑制载波传输">雙邊帶抑制載波調變</a>（DSB-SC調變） <dl><dd>DSB-SC的發射波只由上下邊帶組成。抑制載波可以節省傳輸功率，但通道頻寬需求還是跟原來一樣，也就是訊息頻寬的兩倍。</dd></dl></li> <li><a href="/wiki/%E5%8D%95%E8%BE%B9%E5%B8%A6%E8%B0%83%E5%88%B6#残留边带" title="单边带调制">殘留邊帶調變</a>（VSB調變） <dl><dd>VSB調變讓一組邊帶幾乎全部通過，而另一組幾乎全不通過，有少量殘留，VSB的頻寬需求比訊息頻寬多了前述的殘留邊帶的寬度。這種調變適合用在電視訊號等寬頻訊號，在極低頻率處有顯著的成份。又例如說，電視廣播很強的載波會跟被調波一起傳送，我們能在接收端處用波封檢測器來解調訊號，接收器設計得以簡化。</dd></dl></li> <li><a href="/wiki/%E5%8D%95%E8%BE%B9%E5%B8%A6%E8%B0%83%E5%88%B6" title="单边带调制">單邊帶調變</a>（SSB調變） <dl><dd>SSB的被調波只由上邊帶（upper sideband）或下邊帶（lower sideband）組成，SSB調變的功能是在振幅調變的基礎上將使用頻寬減半。這調變方法需要的傳輸功率及通道頻寬都最少，但需更精密的濾波器才能精準濾出單一邊帶，因此缺點是增加成本、系統更複雜。適合傳送聲音訊號。</dd></dl></li></ol> <div class="mw-heading mw-heading2"><h2 id="参见"><span id=".E5.8F.82.E8.A7.81"></span>参见</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%E6%8C%AF%E5%B9%85%E8%AA%BF%E8%AE%8A&action=edit&section=8" title="编辑章节：参见"><span>编辑</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/%E8%AA%BF%E5%B9%85%E5%BB%A3%E6%92%AD" title="調幅廣播">調幅廣播</a></li> <li><span class="ilh-all" data-orig-title="AM立体声" data-lang-code="en" data-lang-name="英语" data-foreign-title="AM stereo"><span class="ilh-page"><a href="/w/index.php?title=AM%E7%AB%8B%E4%BD%93%E5%A3%B0&action=edit&redlink=1" class="new" title="AM立体声（页面不存在）">AM立体声</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/AM_stereo" class="extiw" title="en:AM stereo"><span lang="en" dir="auto">AM stereo</span></a></span>）</span></span></li> <li>用于AM无线电广播的<a href="/wiki/%E4%B8%AD%E6%B3%A2" title="中波">中波</a>波段</li> <li>用于AM无线电广播的<a href="/wiki/%E4%BD%8E%E9%A0%BB" title="低頻">低頻</a>波段</li> <li><a href="/wiki/%E9%A2%91%E7%8E%87%E8%B0%83%E5%88%B6" title="频率调制">频率调制</a></li> <li><a href="/wiki/%E7%9F%AD%E6%B3%A2" title="短波">短波</a>普遍使用调幅，很少的情况下当频率在25 MHz以上时用调频。</li> <li><a href="/wiki/%E8%AA%BF%E8%AE%8A" title="調變">調變</a>，一些其他调制方法</li> <li><span class="ilh-all" data-orig-title="幅度调制信号系统" data-lang-code="en" data-lang-name="英语" data-foreign-title="Amplitude modulation signalling system"><span class="ilh-page"><a href="/w/index.php?title=%E5%B9%85%E5%BA%A6%E8%B0%83%E5%88%B6%E4%BF%A1%E5%8F%B7%E7%B3%BB%E7%BB%9F&action=edit&redlink=1" class="new" title="幅度调制信号系统（页面不存在）">幅度调制信号系统</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/Amplitude_modulation_signalling_system" class="extiw" title="en:Amplitude modulation signalling system"><span lang="en" dir="auto">Amplitude modulation signalling system</span></a></span>）</span></span>（AMSS），一种用于向调幅訊号加入低比特率訊息的数字系统。</li> <li><a href="/wiki/%E8%BE%B9%E5%B8%A6" title="边带">边带</a></li> <li><span class="ilh-all" data-orig-title="无线电发射的类型" data-lang-code="en" data-lang-name="英语" data-foreign-title="Types of radio emissions"><span class="ilh-page"><a href="/w/index.php?title=%E6%97%A0%E7%BA%BF%E7%94%B5%E5%8F%91%E5%B0%84%E7%9A%84%E7%B1%BB%E5%9E%8B&action=edit&redlink=1" class="new" title="无线电发射的类型（页面不存在）">无线电发射的类型</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/Types_of_radio_emissions" class="extiw" title="en:Types of radio emissions"><span lang="en" dir="auto">Types of radio emissions</span></a></span>）</span></span>，<a href="/wiki/%E5%9B%BD%E9%99%85%E7%94%B5%E4%BF%A1%E8%81%94%E7%9B%9F" title="国际电信联盟">ITU</a>指定的发射类型</li> <li><a href="/wiki/%E6%B3%A2%E6%AE%B5" title="波段">波段</a></li> <li><a href="/wiki/%E6%B0%91%E7%94%A8%E6%B3%A2%E6%AE%B5%E6%97%A0%E7%BA%BF%E7%94%B5%E5%8F%B0" title="民用波段无线电台">民用波段无线电台</a></li> <li><a href="/wiki/%E6%AD%A3%E4%BA%A4%E5%B9%85%E5%BA%A6%E8%B0%83%E5%88%B6" title="正交幅度调制">正交幅度调制</a></li> <li><a href="/wiki/%E5%8F%8C%E8%BE%B9%E5%B8%A6%E6%8A%91%E5%88%B6%E8%BD%BD%E6%B3%A2%E4%BC%A0%E8%BE%93" title="双边带抑制载波传输">DSB-SC</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="参考文献"><span id=".E5.8F.82.E8.80.83.E6.96.87.E7.8C.AE"></span>参考文献</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%E6%8C%AF%E5%B9%85%E8%AA%BF%E8%AE%8A&action=edit&section=9" title="编辑章节：参考文献"><span>编辑</span></a><span class="mw-editsection-bracket">]</span></span></div> <dl><dt>注释</dt></dl> <div class="reflist" style="list-style-type: decimal;"> <ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-1">^</a></b></span> <span class="reference-text"><cite class="citation web"><a rel="nofollow" class="external text" href="http://www.aminharadio.com/radio/files/Artigo-Revista-PCP-USA.pdf">存档副本</a> <span style="font-size:85%;">(PDF)</span>. <span class="reference-accessdate"> [<span class="nowrap">2015-11-23</span>]</span>. （原始内容<a rel="nofollow" class="external text" href="https://web.archive.org/web/20151124031213/http://www.aminharadio.com/radio/files/Artigo-Revista-PCP-USA.pdf">存档</a> <span style="font-size:85%;">(PDF)</span>于2015-11-24）.</cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fzh.wikipedia.org%3A%E6%8C%AF%E5%B9%85%E8%AA%BF%E8%AE%8A&rft.btitle=%E5%AD%98%E6%A1%A3%E5%89%AF%E6%9C%AC&rft.genre=unknown&rft_id=http%3A%2F%2Fwww.aminharadio.com%2Fradio%2Ffiles%2FArtigo-Revista-PCP-USA.pdf&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook" class="Z3988"><span style="display:none;"> </span></span></span> </li> </ol></div> <dl><dt>来源</dt></dl> <ul><li>Newkirk, David and Karlquist, Rick (2004). Mixers, modulators and demodulators. In D. G. Reed (ed.), <i>The ARRL Handbook for Radio Communications</i> (81st ed.), pp. 15.1–15.36. Newington: ARRL. <a href="/wiki/Special:%E7%BD%91%E7%BB%9C%E4%B9%A6%E6%BA%90/0872591964" class="internal mw-magiclink-isbn">ISBN 0-87259-196-4</a>.</li></ul> <div class="mw-heading mw-heading2"><h2 id="外部链接"><span id=".E5.A4.96.E9.83.A8.E9.93.BE.E6.8E.A5"></span>外部链接</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%E6%8C%AF%E5%B9%85%E8%AA%BF%E8%AE%8A&action=edit&section=10" title="编辑章节：外部链接"><span>编辑</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><i><a rel="nofollow" class="external text" href="https://web.archive.org/web/20090728105917/http://demonstrations.wolfram.com/AmplitudeModulation/">Amplitude Modulation</a></i> by Jakub Serych, <a href="/wiki/Wolfram_%E6%BC%94%E7%A4%BA%E9%A1%B9%E7%9B%AE" title="Wolfram 演示项目">Wolfram Demonstrations Project</a>.</li> <li><a rel="nofollow" class="external text" href="http://robotics.eecs.berkeley.edu/~sastry/ee20/modulation/node3.html">Amplitude Modulation</a> （<a rel="nofollow" class="external text" href="//web.archive.org/web/20170811234929/http://robotics.eecs.berkeley.edu/~sastry/ee20/modulation/node3.html">页面存档备份</a>，存于<a href="/wiki/%E4%BA%92%E8%81%94%E7%BD%91%E6%A1%A3%E6%A1%88%E9%A6%86" title="互联网档案馆">互联网档案馆</a>）, by S Sastry.</li> <li><a rel="nofollow" class="external text" href="http://www.fas.org/man/dod-101/navy/docs/es310/AM.htm">Amplitude Modulation</a> （<a rel="nofollow" class="external text" href="//web.archive.org/web/20201230203809/http://www.fas.org/man/dod-101/navy/docs/es310/AM.htm">页面存档备份</a>，存于<a href="/wiki/%E4%BA%92%E8%81%94%E7%BD%91%E6%A1%A3%E6%A1%88%E9%A6%86" title="互联网档案馆">互联网档案馆</a>）, an introduction by <a href="/wiki/%E7%BE%8E%E5%9C%8B%E7%A7%91%E5%AD%B8%E5%AE%B6%E8%81%AF%E7%9B%9F" title="美國科學家聯盟">Federation of American Scientists</a>.</li> <li><a rel="nofollow" class="external text" href="http://afrotechmods.com/tutorials/2011/11/28/amplitude-modulation-tutorial-am-radio-transmitter-circuit/">Amplitude Modulation tutorial video with example transmitter circuit.</a> <a href="/wiki/Archive.is" title="Archive.is">Archive.is</a>的<a rel="nofollow" class="external text" href="https://archive.today/20141229181646/http://afrotechmods.com/tutorials/2011/11/28/amplitude-modulation-tutorial-am-radio-transmitter-circuit/">存檔</a>，存档日期2014-12-29</li></ul> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r84265675"><style data-mw-deduplicate="TemplateStyles:r84261037">.mw-parser-output .navbox{box-sizing:border-box;border:1px solid #a2a9b1;width:100%;clear:both;font-size:88%;text-align:center;padding:1px;margin:1em auto 0}.mw-parser-output .navbox .navbox{margin-top:0}.mw-parser-output .navbox+.navbox,.mw-parser-output .navbox+.navbox-styles+.navbox{margin-top:-1px}.mw-parser-output .navbox-inner,.mw-parser-output .navbox-subgroup{width:100%}.mw-parser-output .navbox-group,.mw-parser-output .navbox-title,.mw-parser-output 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class="collapsible-title navbox-title" colspan="3"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r84265675"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r84244141"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:%E9%9B%BB%E4%BF%A1" title="Template:電信"><abbr title="查看该模板">查</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:%E9%9B%BB%E4%BF%A1" title="Template talk:電信"><abbr title="讨论该模板">论</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:%E7%BC%96%E8%BE%91%E9%A1%B5%E9%9D%A2/Template:%E9%9B%BB%E4%BF%A1" title="Special:编辑页面/Template:電信"><abbr title="编辑该模板">编</abbr></a></li></ul></div><div id="电信" style="font-size:110%;margin:0 5em"><a href="/wiki/%E7%94%B5%E4%BF%A1" title="电信">电信</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%"><span class="ilh-all" data-orig-title="电信发展史" data-lang-code="en" data-lang-name="英语" data-foreign-title="History of telecommunication"><span class="ilh-page"><a href="/w/index.php?title=%E7%94%B5%E4%BF%A1%E5%8F%91%E5%B1%95%E5%8F%B2&action=edit&redlink=1" class="new" title="电信发展史（页面不存在）">电信历史</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/History_of_telecommunication" class="extiw" title="en:History of telecommunication"><span lang="en" dir="auto">History of telecommunication</span></a></span>）</span></span></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0px"><div style="padding:0em 0.25em"> <ul><li><span class="ilh-all" data-orig-title="信标" data-lang-code="en" data-lang-name="英语" data-foreign-title="Beacon"><span class="ilh-page"><a href="/w/index.php?title=%E4%BF%A1%E6%A0%87&action=edit&redlink=1" class="new" title="信标（页面不存在）">信标</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/Beacon" class="extiw" title="en:Beacon"><span lang="en" dir="auto">Beacon</span></a></span>）</span></span></li> <li><span class="ilh-all" data-orig-title="广播发展史" data-lang-code="en" data-lang-name="英语" data-foreign-title="History of broadcasting"><span class="ilh-page"><a href="/w/index.php?title=%E5%B9%BF%E6%92%AD%E5%8F%91%E5%B1%95%E5%8F%B2&action=edit&redlink=1" class="new" title="广播发展史（页面不存在）">广播</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/History_of_broadcasting" class="extiw" title="en:History of broadcasting"><span lang="en" dir="auto">History of broadcasting</span></a></span>）</span></span></li> <li><span class="ilh-all" data-orig-title="电缆保护系统" data-lang-code="en" data-lang-name="英语" data-foreign-title="Cable protection system"><span class="ilh-page"><a href="/w/index.php?title=%E7%94%B5%E7%BC%86%E4%BF%9D%E6%8A%A4%E7%B3%BB%E7%BB%9F&action=edit&redlink=1" class="new" title="电缆保护系统（页面不存在）">电缆保护系统</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/Cable_protection_system" class="extiw" title="en:Cable protection system"><span lang="en" dir="auto">Cable protection system</span></a></span>）</span></span></li> <li><a href="/wiki/%E6%9C%89%E7%BA%BF%E7%94%B5%E8%A7%86" title="有线电视">有线电视</a></li> <li><a href="/wiki/%E9%80%9A%E8%A8%8A%E8%A1%9B%E6%98%9F" title="通訊衛星">通信卫星</a></li> <li><a href="/wiki/%E8%AE%A1%E7%AE%97%E6%9C%BA%E7%BD%91%E7%BB%9C" title="计算机网络">计算机网络</a></li> <li><a href="/wiki/%E6%95%B0%E6%8D%AE%E5%8E%8B%E7%BC%A9" title="数据压缩">数据压缩</a> <ul><li><span class="ilh-all" data-orig-title="音频编码格式" data-lang-code="en" data-lang-name="英语" data-foreign-title="Audio coding format"><span class="ilh-page"><a href="/w/index.php?title=%E9%9F%B3%E9%A2%91%E7%BC%96%E7%A0%81%E6%A0%BC%E5%BC%8F&action=edit&redlink=1" class="new" title="音频编码格式（页面不存在）">音频</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/Audio_coding_format" class="extiw" title="en:Audio coding format"><span lang="en" dir="auto">Audio coding format</span></a></span>）</span></span></li> <li><a href="/wiki/%E7%A6%BB%E6%95%A3%E4%BD%99%E5%BC%A6%E5%8F%98%E6%8D%A2" title="离散余弦变换">DCT</a></li> <li><a href="/wiki/%E5%9B%BE%E5%83%8F%E5%8E%8B%E7%BC%A9" title="图像压缩">图像</a></li> <li><span class="ilh-all" data-orig-title="视频编码格式" data-lang-code="en" data-lang-name="英语" data-foreign-title="Video coding format"><span class="ilh-page"><a href="/w/index.php?title=%E8%A7%86%E9%A2%91%E7%BC%96%E7%A0%81%E6%A0%BC%E5%BC%8F&action=edit&redlink=1" class="new" title="视频编码格式（页面不存在）">视频</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/Video_coding_format" class="extiw" title="en:Video coding format"><span lang="en" dir="auto">Video coding format</span></a></span>）</span></span></li></ul></li> <li><a href="/wiki/%E6%95%B0%E5%AD%97%E5%AA%92%E4%BD%93" title="数字媒体">数字媒体</a> <ul><li><span class="ilh-all" data-orig-title="互联网视频" data-lang-code="en" data-lang-name="英语" data-foreign-title="Internet video"><span class="ilh-page"><a href="/w/index.php?title=%E4%BA%92%E8%81%94%E7%BD%91%E8%A7%86%E9%A2%91&action=edit&redlink=1" class="new" title="互联网视频（页面不存在）">互联网视频</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/Internet_video" class="extiw" title="en:Internet video"><span lang="en" dir="auto">Internet video</span></a></span>）</span></span></li> <li><a href="/wiki/%E5%BD%B1%E7%89%87%E5%88%86%E4%BA%AB%E7%B6%B2%E7%AB%99" title="影片分享網站">在线视频平台</a></li> <li><a href="/wiki/%E7%A4%BE%E7%BE%A4%E5%AA%92%E9%AB%94" title="社群媒體">社交媒体</a></li> <li><a href="/wiki/%E6%B5%81%E5%AA%92%E4%BD%93" title="流媒体">流媒体</a></li></ul></li> <li><span class="ilh-all" data-orig-title="通讯鼓" data-lang-code="en" data-lang-name="英语" data-foreign-title="Drums in communication"><span class="ilh-page"><a href="/w/index.php?title=%E9%80%9A%E8%AE%AF%E9%BC%93&action=edit&redlink=1" class="new" title="通讯鼓（页面不存在）">鼓</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/Drums_in_communication" class="extiw" title="en:Drums in communication"><span lang="en" dir="auto">Drums in communication</span></a></span>）</span></span></li> <li><span class="ilh-all" data-orig-title="埃德霍姆定律" data-lang-code="en" data-lang-name="英语" data-foreign-title="Edholm's law"><span class="ilh-page"><a href="/w/index.php?title=%E5%9F%83%E5%BE%B7%E9%9C%8D%E5%A7%86%E5%AE%9A%E5%BE%8B&action=edit&redlink=1" class="new" title="埃德霍姆定律（页面不存在）">埃德霍姆定律</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/Edholm%27s_law" class="extiw" title="en:Edholm's law"><span lang="en" dir="auto">Edholm's law</span></a></span>）</span></span></li> <li><a href="/wiki/%E7%94%B5%E6%8A%A5" title="电报">电报</a></li> <li><a href="/wiki/%E5%82%B3%E7%9C%9F" title="傳真">传真</a></li> <li><span class="ilh-all" data-orig-title="回光信号器" data-lang-code="en" data-lang-name="英语" data-foreign-title="Heliograph"><span class="ilh-page"><a href="/w/index.php?title=%E5%9B%9E%E5%85%89%E4%BF%A1%E5%8F%B7%E5%99%A8&action=edit&redlink=1" class="new" title="回光信号器（页面不存在）">回光信号器</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/Heliograph" class="extiw" title="en:Heliograph"><span lang="en" dir="auto">Heliograph</span></a></span>）</span></span></li> <li><span class="ilh-all" data-orig-title="液压电报机" data-lang-code="en" data-lang-name="英语" data-foreign-title="Hydraulic telegraph"><span class="ilh-page"><a href="/w/index.php?title=%E6%B6%B2%E5%8E%8B%E7%94%B5%E6%8A%A5%E6%9C%BA&action=edit&redlink=1" class="new" title="液压电报机（页面不存在）">液压电报机</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/Hydraulic_telegraph" class="extiw" title="en:Hydraulic telegraph"><span lang="en" dir="auto">Hydraulic telegraph</span></a></span>）</span></span></li> <li><a href="/wiki/%E4%BF%A1%E6%81%AF%E6%97%B6%E4%BB%A3" title="信息时代">信息时代</a></li> <li><a href="/wiki/%E8%B3%87%E8%A8%8A%E9%9D%A9%E5%91%BD" title="資訊革命">信息革命</a></li> <li><a href="/wiki/%E4%BA%92%E8%81%94%E7%BD%91%E5%8E%86%E5%8F%B2" title="互联网历史">互联网</a></li> <li><a href="/wiki/%E5%A4%A7%E7%9C%BE%E5%AA%92%E9%AB%94" title="大眾媒體">大众传媒</a></li> <li><span class="ilh-all" data-orig-title="移动电话历史" data-lang-code="en" data-lang-name="英语" data-foreign-title="History of mobile phones"><span class="ilh-page"><a href="/w/index.php?title=%E7%A7%BB%E5%8A%A8%E7%94%B5%E8%AF%9D%E5%8E%86%E5%8F%B2&action=edit&redlink=1" class="new" title="移动电话历史（页面不存在）">手机</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/History_of_mobile_phones" class="extiw" title="en:History of mobile phones"><span lang="en" dir="auto">History of mobile phones</span></a></span>）</span></span> <ul><li><a href="/wiki/%E6%99%BA%E8%83%BD%E6%89%8B%E6%9C%BA" title="智能手机">智能手机</a></li></ul></li> <li><a href="/wiki/%E5%85%89%E9%80%9A%E8%A8%8A" title="光通訊">光通讯</a></li> <li><span class="ilh-all" data-orig-title="光电报" data-lang-code="en" data-lang-name="英语" data-foreign-title="Optical telegraph"><span class="ilh-page"><a href="/wiki/%E5%85%89%E9%9B%BB%E5%A0%B1" title="光電報">光电报</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/Optical_telegraph" class="extiw" title="en:Optical telegraph"><span lang="en" dir="auto">Optical telegraph</span></a></span>）</span></span></li> <li><a href="/wiki/%E5%82%B3%E5%91%BC%E6%A9%9F" title="傳呼機">寻呼机</a></li> <li><span class="ilh-all" data-orig-title="光音机" data-lang-code="en" data-lang-name="英语" data-foreign-title="Photophone"><span class="ilh-page"><a href="/w/index.php?title=%E5%85%89%E9%9F%B3%E6%9C%BA&action=edit&redlink=1" class="new" title="光音机（页面不存在）">光音机</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/Photophone" class="extiw" title="en:Photophone"><span lang="en" dir="auto">Photophone</span></a></span>）</span></span></li> <li><span class="ilh-all" data-orig-title="预付费手机历史" data-lang-code="en" data-lang-name="英语" data-foreign-title="History of prepaid mobile phones"><span class="ilh-page"><a href="/w/index.php?title=%E9%A2%84%E4%BB%98%E8%B4%B9%E6%89%8B%E6%9C%BA%E5%8E%86%E5%8F%B2&action=edit&redlink=1" class="new" title="预付费手机历史（页面不存在）">预付费手机</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/History_of_prepaid_mobile_phones" class="extiw" title="en:History of prepaid mobile phones"><span lang="en" dir="auto">History of prepaid mobile phones</span></a></span>）</span></span></li> <li><span class="ilh-all" data-orig-title="电台历史" data-lang-code="en" data-lang-name="英语" data-foreign-title="History of radio"><span class="ilh-page"><a href="/w/index.php?title=%E7%94%B5%E5%8F%B0%E5%8E%86%E5%8F%B2&action=edit&redlink=1" class="new" title="电台历史（页面不存在）">电台</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/History_of_radio" class="extiw" title="en:History of radio"><span lang="en" dir="auto">History of radio</span></a></span>）</span></span></li> <li><span class="ilh-all" data-orig-title="无线电话" data-lang-code="en" data-lang-name="英语" data-foreign-title="Radiotelephone"><span class="ilh-page"><a href="/wiki/%E7%84%A1%E7%B7%9A%E9%9B%BB%E8%A9%B1" class="mw-disambig" title="無線電話">无线电话</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/Radiotelephone" class="extiw" title="en:Radiotelephone"><span lang="en" dir="auto">Radiotelephone</span></a></span>）</span></span></li> <li><a href="/wiki/%E9%80%9A%E8%A8%8A%E8%A1%9B%E6%98%9F" title="通訊衛星">卫星通讯</a></li> <li><a href="/wiki/%E6%97%97%E8%AA%9E" title="旗語">旗语</a></li> <li><a href="/wiki/%E5%8D%8A%E5%AF%BC%E4%BD%93" title="半导体">半导体</a> <ul><li><a href="/wiki/%E5%8D%8A%E5%AF%BC%E4%BD%93%E5%99%A8%E4%BB%B6" title="半导体器件">器件</a></li> <li><a href="/wiki/%E9%87%91%E5%B1%AC%E6%B0%A7%E5%8C%96%E7%89%A9%E5%8D%8A%E5%B0%8E%E9%AB%94%E5%A0%B4%E6%95%88%E9%9B%BB%E6%99%B6%E9%AB%94" title="金屬氧化物半導體場效電晶體">MOSEFT</a></li> <li><span class="ilh-all" data-orig-title="晶体管历史" data-lang-code="en" data-lang-name="英语" data-foreign-title="History of the transistor"><span class="ilh-page"><a href="/w/index.php?title=%E6%99%B6%E4%BD%93%E7%AE%A1%E5%8E%86%E5%8F%B2&action=edit&redlink=1" class="new" title="晶体管历史（页面不存在）">晶体管</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/History_of_the_transistor" class="extiw" title="en:History of the transistor"><span lang="en" dir="auto">History of the transistor</span></a></span>）</span></span></li></ul></li> <li><a href="/wiki/%E7%83%BD%E7%81%AB" title="烽火">烽火</a></li> <li><span class="ilh-all" data-orig-title="电信发展史" data-lang-code="en" data-lang-name="英语" data-foreign-title="History of telecommunication"><span class="ilh-page"><a href="/w/index.php?title=%E7%94%B5%E4%BF%A1%E5%8F%91%E5%B1%95%E5%8F%B2&action=edit&redlink=1" class="new" title="电信发展史（页面不存在）">电信</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/History_of_telecommunication" class="extiw" title="en:History of telecommunication"><span lang="en" dir="auto">History of telecommunication</span></a></span>）</span></span></li> <li><span class="ilh-all" data-orig-title="电报传真机" data-lang-code="en" data-lang-name="英语" data-foreign-title="Telautograph"><span class="ilh-page"><a href="/w/index.php?title=%E7%94%B5%E6%8A%A5%E4%BC%A0%E7%9C%9F%E6%9C%BA&action=edit&redlink=1" class="new" title="电报传真机（页面不存在）">电报传真机</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/Telautograph" class="extiw" title="en:Telautograph"><span lang="en" dir="auto">Telautograph</span></a></span>）</span></span></li> <li><a href="/wiki/%E9%9B%BB%E5%82%B3%E6%89%93%E5%AD%97%E6%A9%9F" title="電傳打字機">电传</a> <ul><li>电传打字机</li></ul></li> <li><a href="/wiki/%E7%94%B5%E8%AF%9D%E7%9A%84%E5%8E%86%E5%8F%B2" title="电话的历史">电话</a></li> <li><a href="/wiki/%E7%94%B5%E8%AF%9D%E6%A1%88" title="电话案">电话案</a></li> <li><a href="/wiki/%E7%94%B5%E8%A7%86%E5%8F%B2" title="电视史">电视</a> <ul><li><a href="/wiki/%E6%95%B0%E5%AD%97%E7%94%B5%E8%A7%86" title="数字电视">數字電視</a></li> <li><a href="/wiki/%E7%BD%91%E7%BB%9C%E7%94%B5%E8%A7%86" title="网络电视">网络电视</a></li></ul></li> <li><a href="/wiki/%E6%B5%B7%E5%BA%95%E9%9B%BB%E7%BA%9C" title="海底電纜">海底电缆</a></li> <li><span class="ilh-all" data-orig-title="视频电话历史" data-lang-code="en" data-lang-name="英语" data-foreign-title="History of videotelephony"><span class="ilh-page"><a href="/w/index.php?title=%E8%A7%86%E9%A2%91%E7%94%B5%E8%AF%9D%E5%8E%86%E5%8F%B2&action=edit&redlink=1" class="new" title="视频电话历史（页面不存在）">视频电话</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/History_of_videotelephony" class="extiw" title="en:History of videotelephony"><span lang="en" dir="auto">History of videotelephony</span></a></span>）</span></span></li> <li><span class="ilh-all" data-orig-title="口哨语" data-lang-code="en" data-lang-name="英语" data-foreign-title="Whistled language"><span class="ilh-page"><a href="/w/index.php?title=%E5%8F%A3%E5%93%A8%E8%AF%AD&action=edit&redlink=1" class="new" title="口哨语（页面不存在）">口哨语</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/Whistled_language" class="extiw" title="en:Whistled language"><span lang="en" dir="auto">Whistled language</span></a></span>）</span></span></li> <li><a href="/wiki/%E7%84%A1%E7%B7%9A%E9%80%9A%E8%A8%8A" title="無線通訊">无线革命</a></li></ul> </div></td><td class="noviewer navbox-image" rowspan="6" style="width:1px;padding:0px 0px 0px 2px"><div><span typeof="mw:File"><a href="/wiki/File:Telecom-icon.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/4/4e/Telecom-icon.svg/100px-Telecom-icon.svg.png" decoding="async" width="100" height="100" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/4e/Telecom-icon.svg/150px-Telecom-icon.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/4e/Telecom-icon.svg/200px-Telecom-icon.svg.png 2x" data-file-width="512" data-file-height="512" /></a></span></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">先驱人物</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0px"><div style="padding:0em 0.25em"> <ul><li><span class="ilh-all" data-orig-title="纳西尔·艾哈迈德 (工程师)" data-lang-code="en" data-lang-name="英语" data-foreign-title="Nasir Ahmed (engineer)"><span class="ilh-page"><a href="/w/index.php?title=%E7%BA%B3%E8%A5%BF%E5%B0%94%C2%B7%E8%89%BE%E5%93%88%E8%BF%88%E5%BE%B7_(%E5%B7%A5%E7%A8%8B%E5%B8%88)&action=edit&redlink=1" class="new" title="纳西尔·艾哈迈德 (工程师)（页面不存在）">纳西尔·艾哈迈德</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/Nasir_Ahmed_(engineer)" class="extiw" title="en:Nasir Ahmed (engineer)"><span lang="en" dir="auto">Nasir Ahmed (engineer)</span></a></span>）</span></span></li> <li><a href="/wiki/%E5%9F%83%E5%BE%B7%E6%B8%A9%C2%B7%E9%9C%8D%E5%8D%8E%E5%BE%B7%C2%B7%E9%98%BF%E5%A7%86%E6%96%AF%E7%89%B9%E6%9C%97" title="埃德温·霍华德·阿姆斯特朗">埃德温·霍华德·阿姆斯特朗</a></li> <li><span class="ilh-all" data-orig-title="默罕穆德·阿塔拉" data-lang-code="en" data-lang-name="英语" data-foreign-title="Mohamed M. Atalla"><span class="ilh-page"><a href="/w/index.php?title=%E9%BB%98%E7%BD%95%E7%A9%86%E5%BE%B7%C2%B7%E9%98%BF%E5%A1%94%E6%8B%89&action=edit&redlink=1" class="new" title="默罕穆德·阿塔拉（页面不存在）">默罕穆德·阿塔拉</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/Mohamed_M._Atalla" class="extiw" title="en:Mohamed M. Atalla"><span lang="en" dir="auto">Mohamed M. Atalla</span></a></span>）</span></span></li> <li><a href="/wiki/%E7%BA%A6%E7%BF%B0%C2%B7%E7%BD%97%E6%9D%B0%C2%B7%E8%B4%9D%E5%B0%94%E5%BE%B7" title="约翰·罗杰·贝尔德">约翰·罗杰·贝尔德</a></li> <li><a href="/wiki/%E4%BF%9D%E7%BE%85%C2%B7%E5%B7%B4%E8%98%AD" title="保羅·巴蘭">保羅·巴蘭</a></li> <li><a href="/wiki/%E7%BA%A6%E7%BF%B0%C2%B7%E5%B7%B4%E4%B8%81" title="约翰·巴丁">约翰·巴丁</a></li> <li><a href="/wiki/%E4%BA%9A%E5%8E%86%E5%B1%B1%E5%A4%A7%C2%B7%E6%A0%BC%E9%9B%B7%E5%8E%84%E5%A7%86%C2%B7%E8%B4%9D%E5%B0%94" title="亚历山大·格雷厄姆·贝尔">亚历山大·格雷厄姆·贝尔</a></li> <li><a href="/wiki/%E8%92%82%E5%A7%86%C2%B7%E4%BC%AF%E7%BA%B3%E6%96%AF-%E6%9D%8E" title="蒂姆·伯纳斯-李">蒂姆·伯纳斯-李</a></li> <li><a href="/wiki/%E8%B4%BE%E6%A0%BC%E8%BF%AA%E4%BB%80%C2%B7%E9%92%B1%E5%BE%B7%E6%8B%89%C2%B7%E5%8D%9A%E6%96%AF" title="贾格迪什·钱德拉·博斯">贾格迪什·钱德拉·博斯</a></li> <li><a href="/wiki/%E6%B2%83%E5%B0%94%E7%89%B9%C2%B7%E5%B8%83%E6%8B%89%E9%A1%BF" title="沃尔特·布拉顿">沃尔特·布拉顿</a></li> <li><a href="/wiki/%E6%96%87%E9%A0%93%C2%B7%E7%91%9F%E5%A4%AB" title="文頓·瑟夫">文頓·瑟夫</a></li> <li><a href="/wiki/%E5%85%8B%E6%B4%9B%E5%BE%B7%C2%B7%E6%B2%99%E6%99%AE" title="克洛德·沙普">克洛德·沙普</a></li> <li><span class="ilh-all" data-orig-title="Yogen Dalal" data-lang-code="en" data-lang-name="英语" data-foreign-title="Yogen K Dalal"><span class="ilh-page"><a href="/w/index.php?title=Yogen_Dalal&action=edit&redlink=1" class="new" title="Yogen Dalal（页面不存在）">约根·达拉勒</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/Yogen_K_Dalal" class="extiw" title="en:Yogen K Dalal"><span lang="en" dir="auto">Yogen K Dalal</span></a></span>）</span></span></li> <li><span class="ilh-all" data-orig-title="唐纳德·戴维斯" data-lang-code="en" data-lang-name="英语" data-foreign-title="Donald Davies"><span class="ilh-page"><a href="/w/index.php?title=%E5%94%90%E7%BA%B3%E5%BE%B7%C2%B7%E6%88%B4%E7%BB%B4%E6%96%AF&action=edit&redlink=1" class="new" title="唐纳德·戴维斯（页面不存在）">唐纳德·戴维斯</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/Donald_Davies" class="extiw" title="en:Donald Davies"><span lang="en" dir="auto">Donald Davies</span></a></span>）</span></span></li> <li><a href="/wiki/%E6%9D%8E%C2%B7%E5%BE%B7%E5%AF%8C%E9%9B%B7%E6%96%AF%E7%89%B9" title="李·德富雷斯特">李·德富雷斯特</a></li> <li><a href="/wiki/%E8%B2%BB%E7%BE%85%C2%B7%E6%B3%95%E6%81%A9%E6%96%AF%E6%B2%83%E6%96%AF" title="費羅·法恩斯沃斯">費羅·法恩斯沃斯</a></li> <li><a href="/wiki/%E8%8C%83%E4%BF%A1%E9%81%94" title="范信達">范信達</a></li> <li><a href="/wiki/%E4%BB%A5%E5%88%A9%E6%B2%99%C2%B7%E6%A0%BC%E9%9B%B7" title="以利沙·格雷">以利沙·格雷</a></li> <li><a href="/wiki/%E5%A5%A7%E5%88%A9%E5%BC%97%C2%B7%E9%BB%91%E7%B6%AD%E5%A1%9E" title="奧利弗·黑維塞">奧利弗·黑維塞</a></li> <li><span class="ilh-all" data-orig-title="埃尔纳·施奈德·胡佛" data-lang-code="en" data-lang-name="英语" data-foreign-title="Erna Schneider Hoover"><span class="ilh-page"><a href="/w/index.php?title=%E5%9F%83%E5%B0%94%E7%BA%B3%C2%B7%E6%96%BD%E5%A5%88%E5%BE%B7%C2%B7%E8%83%A1%E4%BD%9B&action=edit&redlink=1" class="new" title="埃尔纳·施奈德·胡佛（页面不存在）">埃尔纳·施奈德·胡佛</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/Erna_Schneider_Hoover" class="extiw" title="en:Erna Schneider Hoover"><span lang="en" dir="auto">Erna Schneider Hoover</span></a></span>）</span></span></li> <li><span class="ilh-all" data-orig-title="哈罗德·霍普金斯 (物理学家)" data-lang-code="en" data-lang-name="英语" data-foreign-title="Harold Hopkins (physicist)"><span class="ilh-page"><a href="/w/index.php?title=%E5%93%88%E7%BD%97%E5%BE%B7%C2%B7%E9%9C%8D%E6%99%AE%E9%87%91%E6%96%AF_(%E7%89%A9%E7%90%86%E5%AD%A6%E5%AE%B6)&action=edit&redlink=1" class="new" title="哈罗德·霍普金斯 (物理学家)（页面不存在）">哈罗德·霍普金斯</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/Harold_Hopkins_(physicist)" class="extiw" title="en:Harold Hopkins (physicist)"><span lang="en" dir="auto">Harold Hopkins (physicist)</span></a></span>）</span></span></li> <li><span class="ilh-all" data-orig-title="互联网先驱列表" data-lang-code="en" data-lang-name="英语" data-foreign-title="List of Internet pioneers"><span class="ilh-page"><a href="/w/index.php?title=%E4%BA%92%E8%81%94%E7%BD%91%E5%85%88%E9%A9%B1%E5%88%97%E8%A1%A8&action=edit&redlink=1" class="new" title="互联网先驱列表（页面不存在）">互联网先驱列表</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/List_of_Internet_pioneers" class="extiw" title="en:List of Internet pioneers"><span lang="en" dir="auto">List of Internet pioneers</span></a></span>）</span></span></li> <li><a href="/wiki/%E7%BD%97%E4%BC%AF%E7%89%B9%C2%B7%E5%8D%A1%E6%81%A9" title="罗伯特·卡恩">罗伯特·卡恩</a></li> <li><span class="ilh-all" data-orig-title="姜大元" data-lang-code="en" data-lang-name="英语" data-foreign-title="Dawon Kahng"><span class="ilh-page"><a href="/w/index.php?title=%E5%A7%9C%E5%A4%A7%E5%85%83&action=edit&redlink=1" class="new" title="姜大元（页面不存在）">姜大元</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/Dawon_Kahng" class="extiw" title="en:Dawon Kahng"><span lang="en" dir="auto">Dawon Kahng</span></a></span>）</span></span></li> <li><a href="/wiki/%E9%AB%98%E9%8C%95" title="高錕">高錕</a></li> <li><span class="ilh-all" data-orig-title="纳林德·辛格·卡帕尼" data-lang-code="en" data-lang-name="英语" data-foreign-title="Narinder Singh Kapany"><span class="ilh-page"><a href="/w/index.php?title=%E7%BA%B3%E6%9E%97%E5%BE%B7%C2%B7%E8%BE%9B%E6%A0%BC%C2%B7%E5%8D%A1%E5%B8%95%E5%B0%BC&action=edit&redlink=1" class="new" title="纳林德·辛格·卡帕尼（页面不存在）">纳林德·辛格·卡帕尼</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/Narinder_Singh_Kapany" class="extiw" title="en:Narinder Singh Kapany"><span lang="en" dir="auto">Narinder Singh Kapany</span></a></span>）</span></span></li> <li><a href="/wiki/%E6%B5%B7%E8%92%82%C2%B7%E6%8B%89%E7%8E%9B" title="海蒂·拉玛">海蒂·拉玛</a></li> <li><span class="ilh-all" data-orig-title="因诺琴佐·曼泽蒂" data-lang-code="en" data-lang-name="英语" data-foreign-title="Innocenzo Manzetti"><span class="ilh-page"><a href="/w/index.php?title=%E5%9B%A0%E8%AF%BA%E7%90%B4%E4%BD%90%C2%B7%E6%9B%BC%E6%B3%BD%E8%92%82&action=edit&redlink=1" class="new" title="因诺琴佐·曼泽蒂（页面不存在）">因诺琴佐·曼泽蒂</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/Innocenzo_Manzetti" class="extiw" title="en:Innocenzo Manzetti"><span lang="en" dir="auto">Innocenzo Manzetti</span></a></span>）</span></span></li> <li><a href="/wiki/%E5%8F%A4%E5%88%97%E5%B0%94%E8%8E%AB%C2%B7%E9%A9%AC%E5%8F%AF%E5%B0%BC" title="古列尔莫·马可尼">古列尔莫·马可尼</a></li> <li><a href="/wiki/%E7%BD%97%E4%BC%AF%E7%89%B9%C2%B7%E6%A2%85%E7%89%B9%E5%8D%A1%E5%A4%AB" title="罗伯特·梅特卡夫">罗伯特·梅特卡夫</a></li> <li><a href="/wiki/%E5%AE%89%E6%9D%B1%E5%B0%BC%E5%A5%A7%C2%B7%E7%A9%86%E9%BD%8A" title="安東尼奧·穆齊">安東尼奧·穆齊</a></li> <li><a href="/wiki/%E8%A5%BF%E6%BE%A4%E6%BD%A4%E4%B8%80" title="西澤潤一">西澤潤一</a></li> <li><span class="ilh-all" data-orig-title="拉迪亚·佩尔曼" data-lang-code="en" data-lang-name="英语" data-foreign-title="Radia Perlman"><span class="ilh-page"><a href="/w/index.php?title=%E6%8B%89%E8%BF%AA%E4%BA%9A%C2%B7%E4%BD%A9%E5%B0%94%E6%9B%BC&action=edit&redlink=1" class="new" title="拉迪亚·佩尔曼（页面不存在）">拉迪亚·佩尔曼</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/Radia_Perlman" class="extiw" title="en:Radia Perlman"><span lang="en" dir="auto">Radia Perlman</span></a></span>）</span></span></li> <li><a href="/wiki/%E4%BA%9A%E5%8E%86%E5%B1%B1%E5%A4%A7%C2%B7%E6%96%AF%E6%8D%B7%E6%BD%98%E8%AF%BA%E7%BB%B4%E5%A5%87%C2%B7%E6%B3%A2%E6%B3%A2%E5%A4%AB" title="亚历山大·斯捷潘诺维奇·波波夫">亚历山大·波波夫</a></li> <li><a href="/wiki/%E7%BA%A6%E7%BF%B0%C2%B7%E8%8F%B2%E5%88%A9%E6%99%AE%C2%B7%E8%B5%96%E6%96%AF" title="约翰·菲利普·赖斯">约翰·菲利普·赖斯</a></li> <li><a href="/wiki/%E5%85%8B%E5%8A%B3%E5%BE%B7%C2%B7%E9%A6%99%E5%86%9C" title="克劳德·香农">克劳德·香农</a></li> <li><span class="ilh-all" data-orig-title="亨利·萨顿 (发明家)" data-lang-code="en" data-lang-name="英语" data-foreign-title="Henry Sutton (inventor)"><span class="ilh-page"><a href="/w/index.php?title=%E4%BA%A8%E5%88%A9%C2%B7%E8%90%A8%E9%A1%BF_(%E5%8F%91%E6%98%8E%E5%AE%B6)&action=edit&redlink=1" class="new" title="亨利·萨顿 (发明家)（页面不存在）">亨利·萨顿</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/Henry_Sutton_(inventor)" class="extiw" title="en:Henry Sutton (inventor)"><span lang="en" dir="auto">Henry Sutton (inventor)</span></a></span>）</span></span></li> <li><a href="/wiki/%E5%B0%BC%E5%8F%A4%E6%8B%89%C2%B7%E7%89%B9%E6%96%AF%E6%8B%89" title="尼古拉·特斯拉">尼古拉·特斯拉</a></li> <li><span class="ilh-all" data-orig-title="卡米耶·蒂索" data-lang-code="en" data-lang-name="英语" data-foreign-title="Camille Tissot"><span class="ilh-page"><a href="/w/index.php?title=%E5%8D%A1%E7%B1%B3%E8%80%B6%C2%B7%E8%92%82%E7%B4%A2&action=edit&redlink=1" class="new" title="卡米耶·蒂索（页面不存在）">卡米耶·蒂索</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/Camille_Tissot" class="extiw" title="en:Camille Tissot"><span lang="en" dir="auto">Camille Tissot</span></a></span>）</span></span></li> <li><a href="/wiki/%E9%98%BF%E5%B0%94%E5%BC%97%E9%9B%B7%E5%BE%B7%C2%B7%E9%9F%A6%E5%B0%94" title="阿尔弗雷德·韦尔">阿尔弗雷德·韦尔</a></li> <li><a href="/wiki/%E6%9F%A5%E7%88%BE%E6%96%AF%C2%B7%E6%83%A0%E6%96%AF%E9%80%9A" title="查爾斯·惠斯通">查爾斯·惠斯通</a></li> <li><a href="/wiki/%E5%BC%97%E6%8B%89%E5%9F%BA%E7%B1%B3%E5%B0%94%C2%B7%E4%BD%90%E5%88%A9%E9%87%91" class="mw-redirect" title="弗拉基米尔·佐利金">弗拉基米尔·佐利金</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/%E4%BC%A0%E8%BE%93%E4%BB%8B%E8%B4%A8" class="mw-redirect" title="传输介质">传输介质</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0px"><div style="padding:0em 0.25em"> <ul><li><a href="/wiki/%E5%90%8C%E8%BD%B4%E7%94%B5%E7%BC%86" title="同轴电缆">同轴电缆</a></li> <li><a href="/wiki/%E5%85%89%E7%BA%96%E9%80%9A%E8%A8%8A" title="光纖通訊">光纤通信</a> <ul><li><a href="/wiki/%E5%85%89%E5%B0%8E%E7%BA%96%E7%B6%AD" title="光導纖維">光纤</a></li></ul></li> <li><a href="/wiki/%E8%87%AA%E7%94%B1%E7%A9%BA%E9%96%93%E5%85%89%E9%80%9A%E4%BF%A1" title="自由空間光通信">自由空間光通信</a></li> <li><span class="ilh-all" data-orig-title="分子通信" data-lang-code="en" data-lang-name="英语" data-foreign-title="Molecular communication"><span class="ilh-page"><a href="/w/index.php?title=%E5%88%86%E5%AD%90%E9%80%9A%E4%BF%A1&action=edit&redlink=1" class="new" title="分子通信（页面不存在）">分子通信</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/Molecular_communication" class="extiw" title="en:Molecular communication"><span lang="en" dir="auto">Molecular communication</span></a></span>）</span></span></li> <li><a href="/wiki/%E6%97%A0%E7%BA%BF%E7%94%B5" title="无线电">无线电波</a> <ul><li><a href="/wiki/%E7%84%A1%E7%B7%9A%E9%80%9A%E8%A8%8A" title="無線通訊">无线通信</a></li></ul></li> <li><a href="/wiki/%E4%BC%A0%E8%BE%93%E7%BA%BF" title="传输线">传输线</a> <ul><li><span class="ilh-all" data-orig-title="数据传输线路" data-lang-code="en" data-lang-name="英语" data-foreign-title="Data transmission circuit"><span class="ilh-page"><a href="/w/index.php?title=%E6%95%B0%E6%8D%AE%E4%BC%A0%E8%BE%93%E7%BA%BF%E8%B7%AF&action=edit&redlink=1" class="new" title="数据传输线路（页面不存在）">数据线路</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/Data_transmission_circuit" class="extiw" title="en:Data transmission circuit"><span lang="en" dir="auto">Data transmission circuit</span></a></span>）</span></span></li> <li><span class="ilh-all" data-orig-title="电信线路" data-lang-code="en" data-lang-name="英语" data-foreign-title="Telecommunication circuit"><span class="ilh-page"><a href="/w/index.php?title=%E7%94%B5%E4%BF%A1%E7%BA%BF%E8%B7%AF&action=edit&redlink=1" class="new" title="电信线路（页面不存在）">电信线路</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/Telecommunication_circuit" class="extiw" title="en:Telecommunication circuit"><span lang="en" dir="auto">Telecommunication circuit</span></a></span>）</span></span></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/%E7%BD%91%E7%BB%9C%E6%8B%93%E6%89%91" title="网络拓扑">网络拓扑</a><br />与交换</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0px"><div style="padding:0em 0.25em"> <ul><li><a href="/wiki/%E5%B8%A6%E5%AE%BD_(%E8%AE%A1%E7%AE%97%E6%9C%BA)" title="带宽 (计算机)">带宽</a></li> <li><a href="/wiki/%E9%80%9A%E4%BF%A1%E9%93%BE%E8%B7%AF" title="通信链路">通信鏈路</a></li> <li><a href="/wiki/%E8%8A%82%E7%82%B9_(%E7%94%B5%E4%BF%A1%E7%BD%91%E7%BB%9C)" title="节点 (电信网络)">节点</a></li> <li><span class="ilh-all" data-orig-title="终端 (电信网络)" data-lang-code="en" data-lang-name="英语" data-foreign-title="Terminal (telecommunication)"><span class="ilh-page"><a href="/w/index.php?title=%E7%BB%88%E7%AB%AF_(%E7%94%B5%E4%BF%A1%E7%BD%91%E7%BB%9C)&action=edit&redlink=1" class="new" title="终端 (电信网络)（页面不存在）">终端</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/Terminal_(telecommunication)" class="extiw" title="en:Terminal (telecommunication)"><span lang="en" dir="auto">Terminal (telecommunication)</span></a></span>）</span></span></li> <li><a href="/wiki/%E7%B6%B2%E8%B7%AF%E4%BA%A4%E6%8F%9B%E5%99%A8" title="網路交換器">交换器</a> <ul><li><a href="/wiki/%E7%94%B5%E8%B7%AF%E4%BA%A4%E6%8D%A2" title="电路交换">电路交换</a></li> <li><a href="/wiki/%E5%88%86%E7%BB%84%E4%BA%A4%E6%8D%A2" title="分组交换">分组交换</a></li></ul></li> <li><a href="/wiki/%E7%94%B5%E4%BF%A1%E4%BA%A4%E6%8D%A2" title="电信交换">电信交换</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/%E5%A4%9A%E8%B7%AF%E5%A4%8D%E7%94%A8" title="多路复用">多路复用</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0px"><div style="padding:0em 0.25em"> <ul><li><a href="/wiki/%E7%A9%BA%E5%88%86%E5%A4%9A%E5%9D%80" title="空分多址">空分多址</a></li> <li><a href="/wiki/%E9%A2%91%E5%88%86%E5%A4%9A%E8%B7%AF%E5%A4%8D%E7%94%A8" title="频分多路复用">频分多路复用</a></li> <li><a href="/wiki/%E6%97%B6%E5%88%86%E5%A4%9A%E8%B7%AF%E5%A4%8D%E7%94%A8" title="时分多路复用">时分多路复用</a></li> <li><span class="ilh-all" data-orig-title="偏振分多路复用" data-lang-code="en" data-lang-name="英语" data-foreign-title="Polarization-division multiplexing"><span class="ilh-page"><a href="/w/index.php?title=%E5%81%8F%E6%8C%AF%E5%88%86%E5%A4%9A%E8%B7%AF%E5%A4%8D%E7%94%A8&action=edit&redlink=1" class="new" title="偏振分多路复用（页面不存在）">偏振分多路复用</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/Polarization-division_multiplexing" class="extiw" title="en:Polarization-division multiplexing"><span lang="en" dir="auto">Polarization-division multiplexing</span></a></span>）</span></span></li> <li><span class="ilh-all" data-orig-title="轨道角动量多路复用" data-lang-code="en" data-lang-name="英语" data-foreign-title="Orbital angular momentum multiplexing"><span class="ilh-page"><a href="/w/index.php?title=%E8%BD%A8%E9%81%93%E8%A7%92%E5%8A%A8%E9%87%8F%E5%A4%9A%E8%B7%AF%E5%A4%8D%E7%94%A8&action=edit&redlink=1" class="new" title="轨道角动量多路复用（页面不存在）">轨道角动量多路复用</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/Orbital_angular_momentum_multiplexing" class="extiw" title="en:Orbital angular momentum multiplexing"><span lang="en" dir="auto">Orbital angular momentum multiplexing</span></a></span>）</span></span></li> <li><a href="/wiki/%E5%88%86%E7%A2%BC%E5%A4%9A%E9%87%8D%E9%80%B2%E6%8E%A5" title="分碼多重進接">码分多址</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/%E7%94%B5%E4%BF%A1%E7%BD%91%E7%BB%9C" title="电信网络">电信网络</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0px"><div style="padding:0em 0.25em"> <ul><li><a href="/wiki/ARPANET" title="ARPANET">ARPANET</a></li> <li><a href="/wiki/BITNET" title="BITNET">BITNET</a></li> <li><a href="/wiki/%E8%9C%82%E7%AA%9D%E7%BD%91%E7%BB%9C" title="蜂窝网络">蜂窝网络</a></li> <li><a href="/wiki/%E8%AE%A1%E7%AE%97%E6%9C%BA%E7%BD%91%E7%BB%9C" title="计算机网络">计算机网络</a></li> <li><span class="ilh-all" data-orig-title="CYCLADES" data-lang-code="en" data-lang-name="英语" data-foreign-title="CYCLADES"><span class="ilh-page"><a href="/w/index.php?title=CYCLADES&action=edit&redlink=1" class="new" title="CYCLADES（页面不存在）">CYCLADES</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/CYCLADES" class="extiw" title="en:CYCLADES"><span lang="en" dir="auto">CYCLADES</span></a></span>）</span></span></li> <li><a href="/wiki/%E4%BB%A5%E5%A4%AA%E7%BD%91" title="以太网">以太网</a></li> <li><a href="/wiki/FidoNet" title="FidoNet">FidoNet</a></li> <li><a href="/wiki/%E4%BA%92%E8%81%94%E7%BD%91" title="互联网">互联网</a></li> <li><span class="ilh-all" data-orig-title="二代互联网" data-lang-code="en" data-lang-name="英语" data-foreign-title="Internet2"><span class="ilh-page"><a href="/w/index.php?title=%E4%BA%8C%E4%BB%A3%E4%BA%92%E8%81%94%E7%BD%91&action=edit&redlink=1" class="new" title="二代互联网（页面不存在）">二代互联网</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/Internet2" class="extiw" title="en:Internet2"><span lang="en" dir="auto">Internet2</span></a></span>）</span></span></li> <li><a href="/wiki/%E7%BB%BC%E5%90%88%E4%B8%9A%E5%8A%A1%E6%95%B0%E5%AD%97%E7%BD%91" title="综合业务数字网">ISDN</a></li> <li><a href="/wiki/%E5%B1%80%E5%9F%9F%E7%BD%91" title="局域网">局域网</a></li> <li><span class="ilh-all" data-orig-title="移动通讯" data-lang-code="en" data-lang-name="英语" data-foreign-title="Mobile telephony"><span class="ilh-page"><a href="/w/index.php?title=%E7%A7%BB%E5%8A%A8%E9%80%9A%E8%AE%AF&action=edit&redlink=1" class="new" title="移动通讯（页面不存在）">移动通讯</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/Mobile_telephony" class="extiw" title="en:Mobile telephony"><span lang="en" dir="auto">Mobile telephony</span></a></span>）</span></span></li> <li><a href="/wiki/%E4%B8%8B%E4%B8%80%E4%BB%A3%E7%BD%91%E7%BB%9C" title="下一代网络">下一代网络</a></li> <li><span class="ilh-all" data-orig-title="NPL网络" data-lang-code="en" data-lang-name="英语" data-foreign-title="NPL network"><span class="ilh-page"><a href="/w/index.php?title=NPL%E7%BD%91%E7%BB%9C&action=edit&redlink=1" class="new" title="NPL网络（页面不存在）">NPL网络</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/NPL_network" class="extiw" title="en:NPL network"><span lang="en" dir="auto">NPL network</span></a></span>）</span></span></li> <li><a href="/wiki/%E5%85%AC%E5%85%B1%E4%BA%A4%E6%8D%A2%E7%94%B5%E8%AF%9D%E7%BD%91" title="公共交换电话网">公共交换电话网</a></li> <li><a href="/wiki/%E9%9B%BB%E5%8F%B0%E7%B6%B2" title="電台網">电台网</a></li> <li><a href="/wiki/%E9%80%9A%E8%A8%8A%E8%A3%9D%E7%BD%AE" title="通訊裝置">通信设备</a></li> <li><a href="/wiki/%E9%9B%BB%E8%A6%96%E8%81%AF%E6%92%AD%E7%B6%B2" title="電視聯播網">电视网</a></li> <li><span class="ilh-all" data-orig-title="电传机" data-lang-code="en" data-lang-name="英语" data-foreign-title="Telex"><span class="ilh-page"><a href="/w/index.php?title=%E7%94%B5%E4%BC%A0%E6%9C%BA&action=edit&redlink=1" class="new" title="电传机（页面不存在）">电传机</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/Telex" class="extiw" title="en:Telex"><span lang="en" dir="auto">Telex</span></a></span>）</span></span></li> <li><a href="/wiki/%E5%B9%BF%E5%9F%9F%E7%BD%91" title="广域网">广域网</a></li> <li><a href="/wiki/%E6%97%A0%E7%BA%BF%E7%BD%91%E7%BB%9C" title="无线网络">无线网络</a></li> <li><a href="/wiki/%E4%B8%87%E7%BB%B4%E7%BD%91" title="万维网">万维网</a></li></ul> </div></td></tr><tr><td class="navbox-abovebelow" colspan="3"><div><span typeof="mw:File"><span title="分类"><img alt="分类" src="//upload.wikimedia.org/wikipedia/commons/thumb/9/96/Symbol_category_class.svg/16px-Symbol_category_class.svg.png" decoding="async" width="16" height="16" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/96/Symbol_category_class.svg/23px-Symbol_category_class.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/96/Symbol_category_class.svg/31px-Symbol_category_class.svg.png 2x" data-file-width="180" data-file-height="185" /></span></span> <a href="/wiki/Category:%E7%94%B5%E4%BF%A1" title="Category:电信">分类</a><span style="white-space:nowrap; font-weight:bold;"> ·</span> <span typeof="mw:File"><span title="列表级条目"><img alt="列表级条目" src="//upload.wikimedia.org/wikipedia/commons/thumb/d/db/Symbol_list_class.svg/16px-Symbol_list_class.svg.png" decoding="async" width="16" height="16" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/db/Symbol_list_class.svg/23px-Symbol_list_class.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/db/Symbol_list_class.svg/31px-Symbol_list_class.svg.png 2x" data-file-width="180" data-file-height="185" /></span></span> <span class="ilh-all" data-orig-title="电信概述" data-lang-code="en" data-lang-name="英语" data-foreign-title="Outline of telecommunication"><span class="ilh-page"><a href="/w/index.php?title=%E7%94%B5%E4%BF%A1%E6%A6%82%E8%BF%B0&action=edit&redlink=1" class="new" title="电信概述（页面不存在）">概述</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/Outline_of_telecommunication" class="extiw" title="en:Outline of telecommunication"><span lang="en" dir="auto">Outline of telecommunication</span></a></span>）</span></span><span style="white-space:nowrap; font-weight:bold;"> ·</span> <span typeof="mw:File"><span title="主题"><img alt="主题" src="//upload.wikimedia.org/wikipedia/commons/thumb/e/e2/Symbol_portal_class.svg/16px-Symbol_portal_class.svg.png" decoding="async" width="16" height="16" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/e2/Symbol_portal_class.svg/23px-Symbol_portal_class.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/e2/Symbol_portal_class.svg/31px-Symbol_portal_class.svg.png 2x" data-file-width="180" data-file-height="185" /></span></span> <a href="/wiki/Portal:%E7%94%B5%E4%BF%A1" title="Portal:电信">主题</a><span style="white-space:nowrap; font-weight:bold;"> ·</span> <span typeof="mw:File"><span title="共享资源页面"><img alt="共享资源页面" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/12px-Commons-logo.svg.png" decoding="async" width="12" height="16" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/18px-Commons-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/24px-Commons-logo.svg.png 2x" data-file-width="1024" data-file-height="1376" /></span></span> <a href="https://commons.wikimedia.org/wiki/Category:Telecommunications" class="extiw" title="commons:Category:Telecommunications">资源</a></div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r84265675"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r84261037"></div><div role="navigation" class="navbox" aria-labelledby="類比與數位音效廣播" style="padding:3px"><table class="nowraplinks hlist mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="collapsible-title navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r84265675"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r84244141"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Audio_broadcasting" title="Template:Audio broadcasting"><abbr title="查看该模板">查</abbr></a></li><li class="nv-talk"><a href="/w/index.php?title=Template_talk:Audio_broadcasting&action=edit&redlink=1" class="new" title="Template talk:Audio broadcasting（页面不存在）"><abbr title="讨论该模板">论</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:%E7%BC%96%E8%BE%91%E9%A1%B5%E9%9D%A2/Template:Audio_broadcasting" title="Special:编辑页面/Template:Audio broadcasting"><abbr title="编辑该模板">编</abbr></a></li></ul></div><div id="類比與數位音效廣播" style="font-size:110%;margin:0 5em"><a href="/wiki/%E9%A1%9E%E6%AF%94" title="類比">類比</a>與<a href="/wiki/%E6%95%B8%E4%BD%8D%E9%9F%B3%E6%95%88" class="mw-redirect" title="數位音效">數位音效</a><a href="/wiki/%E5%BB%A3%E6%92%AD" class="mw-redirect" title="廣播">廣播</a></div></th></tr><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0px;background:#ddf;padding:1px 1em;"><div style="padding:0em 0.25em"><b>地面</b></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/%E7%84%A1%E7%B7%9A" class="mw-redirect mw-disambig" title="無線">無線</a> <a href="/wiki/%E8%AA%BF%E8%AE%8A" title="調變">調變</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0px"><div style="padding:0em 0.25em"><span class="nowrap"> <a class="mw-selflink selflink">AM</a> ·</span> <span class="nowrap"> <a href="/wiki/%E9%A0%BB%E7%8E%87%E8%AA%BF%E8%AE%8A" class="mw-redirect" title="頻率調變">FM</a> ·</span> <span class="nowrap"> <a href="/wiki/%E6%AD%A3%E4%BA%A4%E9%A0%BB%E5%88%86%E5%A4%8D%E7%94%A8" title="正交頻分复用">COFDM</a> </span></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">頻分</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0px"><div style="padding:0em 0.25em"><span class="nowrap"> <a href="https://en.wikipedia.org/wiki/Long_wave" class="extiw" title="en:Long wave">LW</a> ·</span> <span class="nowrap"> <a href="https://en.wikipedia.org/wiki/Medium_wave" class="extiw" title="en:Medium wave">MW</a> (<a href="/wiki/%E4%B8%AD%E9%A0%BB" title="中頻">MF</a>) ·</span> <span class="nowrap"> <a href="https://en.wikipedia.org/wiki/Shortwave" class="extiw" title="en:Shortwave">SW</a> (<a href="https://en.wikipedia.org/wiki/High_frequency" class="extiw" title="en:High frequency">HF</a>) ·</span> <span class="nowrap"> <a href="/wiki/%E7%94%9A%E9%AB%98%E9%A0%BB" title="甚高頻">VHF</a> ·</span> <span class="nowrap"> <a href="/wiki/L%E6%B3%A2%E6%AE%B5" title="L波段">L band</a> </span></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">數位系統</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0px"><div style="padding:0em 0.25em"><a href="/wiki/%E6%95%B8%E7%A2%BC%E8%81%B2%E9%9F%B3%E5%BB%A3%E6%92%AD" title="數碼聲音廣播">DAB/DAB+</a> · <span class="nowrap"> <a href="https://en.wikipedia.org/wiki/Digital_Radio_Mondiale" class="extiw" title="en:Digital Radio Mondiale">DRM/DRM Plus</a> ·</span> <span class="nowrap"> <span class="ilh-all" data-orig-title="HD Radio" data-lang-code="en" data-lang-name="英语" data-foreign-title="HD Radio"><span class="ilh-page"><a href="/w/index.php?title=HD_Radio&action=edit&redlink=1" class="new" title="HD Radio（页面不存在）">HD Radio</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/HD_Radio" class="extiw" title="en:HD Radio"><span lang="en" dir="auto">HD Radio</span></a></span>）</span></span> ·</span> <span class="nowrap"> <span class="ilh-all" data-orig-title="FMeXtra" data-lang-code="en" data-lang-name="英语" data-foreign-title="FMeXtra"><span class="ilh-page"><a href="/w/index.php?title=FMeXtra&action=edit&redlink=1" class="new" title="FMeXtra（页面不存在）">FMeXtra</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/FMeXtra" class="extiw" title="en:FMeXtra"><span lang="en" dir="auto">FMeXtra</span></a></span>）</span></span> ·</span> <span class="nowrap"> <span class="ilh-all" data-orig-title="CAM-D" data-lang-code="en" data-lang-name="英语" data-foreign-title="CAM-D"><span class="ilh-page"><a href="/w/index.php?title=CAM-D&action=edit&redlink=1" class="new" title="CAM-D（页面不存在）">CAM-D</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/CAM-D" class="extiw" title="en:CAM-D"><span lang="en" dir="auto">CAM-D</span></a></span>）</span></span> ·</span> <span class="nowrap"> <a href="https://en.wikipedia.org/wiki/ISDB-T#ISDB-Tsb" class="extiw" title="en:ISDB-T">ISDB-T<small>SB</small></a></span></div></td></tr><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0px;background:#ddf;padding:1px 1em;"><div style="padding:0em 0.25em"><b>衛星</b></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">頻分</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0px"><div style="padding:0em 0.25em"><span class="nowrap"> <a href="/wiki/L%E6%B3%A2%E6%AE%B5" title="L波段">L band</a> ·</span> <span class="nowrap"> <a href="/wiki/S%E6%B3%A2%E6%AE%B5" title="S波段">S band</a> ·</span> <span class="nowrap"> <a href="/wiki/Ku%E6%B3%A2%E6%AE%B5" title="Ku波段">Ku band</a> </span></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">數位系統</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0px"><div style="padding:0em 0.25em"><span class="nowrap"> <a href="https://en.wikipedia.org/wiki/ETSI_Satellite_Digital_Radio" class="extiw" title="en:ETSI Satellite Digital Radio">SDR</a> ·</span> <span class="nowrap"> <a href="https://en.wikipedia.org/wiki/DVB-H#DVB-SH" class="extiw" title="en:DVB-H">DVB-SH</a> ·</span> <span class="nowrap"> <a href="/wiki/%E6%95%B8%E7%A2%BC%E8%81%B2%E9%9F%B3%E5%BB%A3%E6%92%AD" title="數碼聲音廣播">DAB-S</a> ·</span> <span class="nowrap"> <span class="ilh-all" data-orig-title="DMB-S" data-lang-code="en" data-lang-name="英语" data-foreign-title="DMB-S"><span class="ilh-page"><a href="/w/index.php?title=DMB-S&action=edit&redlink=1" class="new" title="DMB-S（页面不存在）">DMB-S</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/DMB-S" class="extiw" title="en:DMB-S"><span lang="en" dir="auto">DMB-S</span></a></span>）</span></span> ·</span> <span class="nowrap"> <a href="https://en.wikipedia.org/wiki/Astra_Digital_Radio" class="extiw" title="en:Astra Digital Radio">ADR</a> </span></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/%E5%95%86%E6%A5%AD%E5%BB%A3%E6%92%AD" title="商業廣播">Commercial radio</a> providers</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0px"><div style="padding:0em 0.25em"><span class="nowrap"> <span class="ilh-all" data-orig-title="1worldspace" data-lang-code="en" data-lang-name="英语" data-foreign-title="1worldspace"><span class="ilh-page"><a href="/w/index.php?title=1worldspace&action=edit&redlink=1" class="new" title="1worldspace（页面不存在）">1worldspace</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/1worldspace" class="extiw" title="en:1worldspace"><span lang="en" dir="auto">1worldspace</span></a></span>）</span></span> ·</span> <span class="nowrap"><a href="https://en.wikipedia.org/wiki/Sirius_Satellite_Radio" class="extiw" title="en:Sirius Satellite Radio">Sirius</a> (<span class="ilh-all" data-orig-title="Sirius Canada" data-lang-code="en" data-lang-name="英语" data-foreign-title="Sirius Canada"><span class="ilh-page"><a href="/w/index.php?title=Sirius_Canada&action=edit&redlink=1" class="new" title="Sirius Canada（页面不存在）">Canada</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/Sirius_Canada" class="extiw" title="en:Sirius Canada"><span lang="en" dir="auto">Sirius Canada</span></a></span>）</span></span>) ·</span> <span class="nowrap"><a href="https://en.wikipedia.org/wiki/XM_Satellite_Radio" class="extiw" title="en:XM Satellite Radio">XM</a> (<a href="https://en.wikipedia.org/wiki/XM_Radio_Canada" class="extiw" title="en:XM Radio Canada">Canada</a>) <i>(see also: <a href="https://en.wikipedia.org/wiki/Sirius_XM_Radio" class="extiw" title="en:Sirius XM Radio">Sirius XM</a>)</i></span></div></td></tr><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0px;background:#ddf;padding:1px 1em;"><div style="padding:0em 0.25em"><b><a href="/wiki/%E7%BC%96%E8%A7%A3%E7%A0%81%E5%99%A8" title="编解码器">Codec</a>s | Hidden signals</b></div></td></tr><tr><td colspan="2" class="navbox-list navbox-even" style="width:100%;padding:0px"><div style="padding:0em 0.25em"><span class="nowrap"> <a href="/wiki/%E9%80%B2%E9%9A%8E%E9%9F%B3%E8%A8%8A%E7%B7%A8%E7%A2%BC" title="進階音訊編碼">AAC</a> ·</span> <span class="nowrap"><a href="/wiki/HE-AAC" class="mw-redirect" title="HE-AAC">HE-AAC</a> ·</span> <span class="nowrap"><a href="/wiki/MPEG-1_Audio_Layer_II" title="MPEG-1 Audio Layer II">MPEG-1 Layer II</a> ·</span> <span class="nowrap"><a href="https://en.wikipedia.org/wiki/AMR-WBplus" class="extiw" title="en:AMR-WBplus">AMR-WB+</a></span>   |  <span class="nowrap"> <span class="ilh-all" data-orig-title="Amplitude modulation signalling system" data-lang-code="en" data-lang-name="英语" data-foreign-title="Amplitude modulation signalling system"><span class="ilh-page"><a href="/w/index.php?title=Amplitude_modulation_signalling_system&action=edit&redlink=1" class="new" title="Amplitude modulation signalling system（页面不存在）">AMSS</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/Amplitude_modulation_signalling_system" class="extiw" title="en:Amplitude modulation signalling system"><span lang="en" dir="auto">Amplitude modulation signalling system</span></a></span>）</span></span> ·</span> <span class="nowrap"><span class="ilh-all" data-orig-title="DirectBand" data-lang-code="en" data-lang-name="英语" data-foreign-title="DirectBand"><span class="ilh-page"><a href="/w/index.php?title=DirectBand&action=edit&redlink=1" class="new" title="DirectBand（页面不存在）">DirectBand</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/DirectBand" class="extiw" title="en:DirectBand"><span lang="en" dir="auto">DirectBand</span></a></span>）</span></span> ·</span> <span class="nowrap"><span class="ilh-all" data-orig-title="Program-associated data" data-lang-code="en" data-lang-name="英语" data-foreign-title="Program-associated data"><span class="ilh-page"><a href="/w/index.php?title=Program-associated_data&action=edit&redlink=1" class="new" title="Program-associated data（页面不存在）">PAD</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/Program-associated_data" class="extiw" title="en:Program-associated data"><span lang="en" dir="auto">Program-associated data</span></a></span>）</span></span> ·</span> <span class="nowrap"> <a href="https://en.wikipedia.org/wiki/Radio_Data_System" class="extiw" title="en:Radio Data System">RDS/RBDS</a> ·</span> <span class="nowrap"><a href="https://en.wikipedia.org/wiki/Subsidiary_Communications_Authority" class="extiw" title="en:Subsidiary Communications Authority">SCA/SCMO</a></span></div></td></tr><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0px;background:#ddf;padding:1px 1em;"><div style="padding:0em 0.25em"><b>相关话题</b></div></td></tr><tr><td colspan="2" class="navbox-list navbox-even" style="width:100%;padding:0px"><div style="padding:0em 0.25em"><span class="nowrap"> Technical: <a href="https://en.wikipedia.org/wiki/Audio_signal_processing" class="extiw" title="en:Audio signal processing">Audio processing</a> ·</span> <span class="nowrap"><a href="/wiki/%E6%95%B0%E6%8D%AE%E5%8E%8B%E7%BC%A9" title="数据压缩">Audio data compression</a> ·</span> <span class="nowrap"><a href="/wiki/%E6%95%B0%E5%AD%97%E5%B9%BF%E6%92%AD" title="数字广播">Digital radio</a> ·</span> <span class="nowrap"><a href="/wiki/%E9%94%99%E8%AF%AF%E6%A3%80%E6%B5%8B%E4%B8%8E%E7%BA%A0%E6%AD%A3" title="错误检测与纠正">Error correction</a> ·</span> <span class="nowrap"><span class="ilh-all" data-orig-title="Multipath propagation" data-lang-code="en" data-lang-name="英语" data-foreign-title="Multipath propagation"><span class="ilh-page"><a href="/w/index.php?title=Multipath_propagation&action=edit&redlink=1" class="new" title="Multipath propagation（页面不存在）">Multipath propagation</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/Multipath_propagation" class="extiw" title="en:Multipath propagation"><span lang="en" dir="auto">Multipath propagation</span></a></span>）</span></span> <br /> Cultural: <span class="ilh-all" data-orig-title="History of radio" data-lang-code="en" data-lang-name="英语" data-foreign-title="History of radio"><span class="ilh-page"><a href="/w/index.php?title=History_of_radio&action=edit&redlink=1" class="new" title="History of radio（页面不存在）">History of radio</a></span><span class="noprint ilh-comment">（<span class="ilh-lang">英语</span><span class="ilh-colon">：</span><span class="ilh-link"><a href="https://en.wikipedia.org/wiki/History_of_radio" class="extiw" title="en:History of radio"><span lang="en" dir="auto">History of radio</span></a></span>）</span></span> ·</span> <span class="nowrap"> <a href="/wiki/%E5%9B%BD%E9%99%85%E5%B9%BF%E6%92%AD" title="国际广播">International broadcasting</a> </span></div></td></tr></tbody></table></div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1&useformat=desktop" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">检索自“<a dir="ltr" href="https://zh.wikipedia.org/w/index.php?title=振幅調變&oldid=83806934">https://zh.wikipedia.org/w/index.php?title=振幅調變&oldid=83806934</a>”</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a 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