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<span>Afficher / masquer la sous-section Théorie</span> </button> <ul id="toc-Théorie-sublist" class="vector-toc-list"> <li id="toc-Cas_d'un_signal_sinusoïdal" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Cas_d'un_signal_sinusoïdal"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.1</span> <span>Cas d'un signal sinusoïdal</span> </div> </a> <ul id="toc-Cas_d'un_signal_sinusoïdal-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Cas_d'un_signal_commuté" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Cas_d'un_signal_commuté"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.2</span> <span>Cas d'un signal commuté</span> </div> </a> <ul id="toc-Cas_d'un_signal_commuté-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Génération_de_la_modulation_de_phase" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Génération_de_la_modulation_de_phase"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.3</span> <span>Génération de la modulation de phase</span> </div> </a> <ul id="toc-Génération_de_la_modulation_de_phase-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Notes_et_références" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Notes_et_références"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Notes et références</span> </div> </a> <ul id="toc-Notes_et_références-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Voir_aussi" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Voir_aussi"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Voir aussi</span> </div> </a> <button aria-controls="toc-Voir_aussi-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Afficher / masquer la sous-section Voir aussi</span> </button> <ul id="toc-Voir_aussi-sublist" class="vector-toc-list"> <li id="toc-Articles_connexes" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Articles_connexes"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.1</span> <span>Articles connexes</span> </div> </a> <ul id="toc-Articles_connexes-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Liens_externes" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Liens_externes"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Liens externes</span> </div> </a> <ul id="toc-Liens_externes-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 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</div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Modulation de phase</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="Aller à un article dans une autre langue. Disponible en 34 langues." > <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-34" 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">34 langues</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <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%B7%D9%88%D8%B1" title="تضمين الطور – arabe" lang="ar" hreflang="ar" data-title="تضمين الطور" data-language-autonym="العربية" data-language-local-name="arabe" 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/Faza_modulyasiyas%C4%B1" title="Faza modulyasiyası – azerbaïdjanais" lang="az" hreflang="az" data-title="Faza modulyasiyası" data-language-autonym="Azərbaycanca" data-language-local-name="azerbaïdjanais" 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%A4%D0%B0%D0%B7%D0%B0%D0%B2%D0%B0%D1%8F_%D0%BC%D0%B0%D0%B4%D1%83%D0%BB%D1%8F%D1%86%D1%8B%D1%8F" title="Фазавая мадуляцыя – biélorusse" lang="be" hreflang="be" data-title="Фазавая мадуляцыя" data-language-autonym="Беларуская" data-language-local-name="biélorusse" class="interlanguage-link-target"><span>Беларуская</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%A6%E0%A6%B6%E0%A6%BE_%E0%A6%AE%E0%A6%A1%E0%A7%8D%E0%A6%AF%E0%A7%81%E0%A6%B2%E0%A7%87%E0%A6%B6%E0%A6%A8" title="দশা মড্যুলেশন – bengali" lang="bn" hreflang="bn" data-title="দশা মড্যুলেশন" data-language-autonym="বাংলা" data-language-local-name="bengali" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Modulaci%C3%B3_de_fase" title="Modulació de fase – catalan" lang="ca" hreflang="ca" data-title="Modulació de fase" data-language-autonym="Català" data-language-local-name="catalan" 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/F%C3%A1zov%C3%A1_modulace" title="Fázová modulace – tchèque" lang="cs" hreflang="cs" data-title="Fázová modulace" data-language-autonym="Čeština" data-language-local-name="tchèque" 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/Fasemodulation" title="Fasemodulation – danois" lang="da" hreflang="da" data-title="Fasemodulation" data-language-autonym="Dansk" data-language-local-name="danois" 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/Phasenmodulation" title="Phasenmodulation – allemand" lang="de" hreflang="de" data-title="Phasenmodulation" data-language-autonym="Deutsch" data-language-local-name="allemand" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Phase_modulation" title="Phase modulation – anglais" lang="en" hreflang="en" data-title="Phase modulation" data-language-autonym="English" data-language-local-name="anglais" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Modulaci%C3%B3n_de_fase" title="Modulación de fase – espagnol" lang="es" hreflang="es" data-title="Modulación de fase" data-language-autonym="Español" data-language-local-name="espagnol" 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/Faasimodulatsioon" title="Faasimodulatsioon – estonien" lang="et" hreflang="et" data-title="Faasimodulatsioon" data-language-autonym="Eesti" data-language-local-name="estonien" class="interlanguage-link-target"><span>Eesti</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_%D9%81%D8%A7%D8%B2" title="مدوله‌سازی فاز – persan" lang="fa" hreflang="fa" data-title="مدوله‌سازی فاز" data-language-autonym="فارسی" data-language-local-name="persan" 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/Vaihemodulaatio" title="Vaihemodulaatio – finnois" lang="fi" hreflang="fi" data-title="Vaihemodulaatio" data-language-autonym="Suomi" data-language-local-name="finnois" class="interlanguage-link-target"><span>Suomi</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%A4%D7%90%D7%96%D7%94" title="אפנון פאזה – hébreu" lang="he" hreflang="he" data-title="אפנון פאזה" data-language-autonym="עברית" data-language-local-name="hébreu" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Modulazione_di_fase" title="Modulazione di fase – italien" lang="it" hreflang="it" data-title="Modulazione di fase" data-language-autonym="Italiano" data-language-local-name="italien" 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/%E4%BD%8D%E7%9B%B8%E5%A4%89%E8%AA%BF" title="位相変調 – japonais" lang="ja" hreflang="ja" data-title="位相変調" data-language-autonym="日本語" data-language-local-name="japonais" 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%A4%D0%B0%D0%B7%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="Фазалық модуляция – kazakh" lang="kk" hreflang="kk" data-title="Фазалық модуляция" data-language-autonym="Қазақша" data-language-local-name="kazakh" 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%9C%84%EC%83%81_%EB%B3%80%EC%A1%B0" title="위상 변조 – coréen" lang="ko" hreflang="ko" data-title="위상 변조" data-language-autonym="한국어" data-language-local-name="coréen" 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/F%C4%81zes_modul%C4%81cija" title="Fāzes modulācija – letton" lang="lv" hreflang="lv" data-title="Fāzes modulācija" data-language-autonym="Latviešu" data-language-local-name="letton" 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%A4%D0%B0%D0%B7%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="Фазна модулација – macédonien" lang="mk" hreflang="mk" data-title="Фазна модулација" data-language-autonym="Македонски" data-language-local-name="macédonien" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Fasemodulatie" title="Fasemodulatie – néerlandais" lang="nl" hreflang="nl" data-title="Fasemodulatie" data-language-autonym="Nederlands" data-language-local-name="néerlandais" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Fasemodulasjon" title="Fasemodulasjon – norvégien bokmål" lang="nb" hreflang="nb" data-title="Fasemodulasjon" data-language-autonym="Norsk bokmål" data-language-local-name="norvégien bokmål" 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_fazy" title="Modulacja fazy – polonais" lang="pl" hreflang="pl" data-title="Modulacja fazy" data-language-autonym="Polski" data-language-local-name="polonais" 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_fase" title="Modulação em fase – portugais" lang="pt" hreflang="pt" data-title="Modulação em fase" data-language-autonym="Português" data-language-local-name="portugais" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%A4%D0%B0%D0%B7%D0%BE%D0%B2%D0%B0%D1%8F_%D0%BC%D0%BE%D0%B4%D1%83%D0%BB%D1%8F%D1%86%D0%B8%D1%8F" title="Фазовая модуляция – russe" lang="ru" hreflang="ru" data-title="Фазовая модуляция" data-language-autonym="Русский" data-language-local-name="russe" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/Fazna_modulacija" title="Fazna modulacija – serbo-croate" lang="sh" hreflang="sh" data-title="Fazna modulacija" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="serbo-croate" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/F%C3%A1zov%C3%A1_modul%C3%A1cia" title="Fázová modulácia – slovaque" lang="sk" hreflang="sk" data-title="Fázová modulácia" data-language-autonym="Slovenčina" data-language-local-name="slovaque" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%A4%D0%B0%D0%B7%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="Фазна модулација – serbe" lang="sr" hreflang="sr" data-title="Фазна модулација" data-language-autonym="Српски / srpski" data-language-local-name="serbe" 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_fase" title="Modulasi fase – soundanais" lang="su" hreflang="su" data-title="Modulasi fase" data-language-autonym="Sunda" data-language-local-name="soundanais" 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/Fasmodulering" title="Fasmodulering – suédois" lang="sv" hreflang="sv" data-title="Fasmodulering" data-language-autonym="Svenska" data-language-local-name="suédois" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%A4%D0%B0%D0%B7%D0%BE%D0%B2%D0%B0_%D0%BC%D0%BE%D0%B4%D1%83%D0%BB%D1%8F%D1%86%D1%96%D1%8F" title="Фазова модуляція – ukrainien" lang="uk" hreflang="uk" data-title="Фазова модуляція" data-language-autonym="Українська" data-language-local-name="ukrainien" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-uz mw-list-item"><a href="https://uz.wikipedia.org/wiki/Fazali_modulyatsiya" title="Fazali modulyatsiya – ouzbek" lang="uz" hreflang="uz" data-title="Fazali modulyatsiya" data-language-autonym="Oʻzbekcha / ўзбекча" data-language-local-name="ouzbek" class="interlanguage-link-target"><span>Oʻzbekcha / ўзбекча</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_pha" title="Điều chế pha – vietnamien" lang="vi" hreflang="vi" data-title="Điều chế pha" data-language-autonym="Tiếng Việt" data-language-local-name="vietnamien" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E7%9B%B8%E4%BD%8D%E8%B0%83%E5%88%B6" title="相位调制 – chinois" lang="zh" hreflang="zh" data-title="相位调制" data-language-autonym="中文" data-language-local-name="chinois" class="interlanguage-link-target"><span>中文</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span 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typeof="mw:File"><a href="/wiki/Aide:Homonymie" title="Aide:Homonymie"><img alt="Page d’aide sur l’homonymie" src="//upload.wikimedia.org/wikipedia/commons/thumb/a/a9/Logo_disambig.svg/20px-Logo_disambig.svg.png" decoding="async" width="20" height="15" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/a/a9/Logo_disambig.svg/30px-Logo_disambig.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/a/a9/Logo_disambig.svg/40px-Logo_disambig.svg.png 2x" data-file-width="512" data-file-height="375" /></a></span></div><div class="bandeau-cell" style="display:table-cell;padding-right:0.5em"> <p>Pour les articles homonymes, voir <a href="/wiki/MP" class="mw-disambig" title="MP">MP</a> et <a href="/wiki/PM" class="mw-disambig" title="PM">PM</a>. </p> </div></div> <p>La <b>modulation de phase</b> ou <b>MP</b> ou <b>PM</b> (<i>Phase modulation</i> en anglais) est un <a href="/wiki/Modulation_du_signal" title="Modulation du signal">mode de modulation</a> consistant à transmettre une information (son, données...) par la modulation de la phase d'un <a href="/wiki/Signal" class="mw-disambig" title="Signal">signal</a> porteur (<a href="/wiki/Porteuse" title="Porteuse">porteuse</a>). Cette modulation est non linéaire. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Théorie"><span id="Th.C3.A9orie"></span>Théorie</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Modulation_de_phase&veaction=edit&section=1" title="Modifier la section : Théorie" class="mw-editsection-visualeditor"><span>modifier</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Modulation_de_phase&action=edit&section=1" title="Modifier le code source de la section : Théorie"><span>modifier le code</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Soit une porteuse : </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 x_{p}(t)=A\cos(\omega _{p}t+\phi (t))\,}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>x</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>p</mi> </mrow> </msub> <mo stretchy="false">(</mo> <mi>t</mi> <mo stretchy="false">)</mo> <mo>=</mo> <mi>A</mi> <mi>cos</mi> <mo>⁡</mo> <mo stretchy="false">(</mo> <msub> <mi>ω</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>p</mi> </mrow> </msub> <mi>t</mi> <mo>+</mo> <mi>ϕ</mi> <mo stretchy="false">(</mo> <mi>t</mi> <mo stretchy="false">)</mo> <mo stretchy="false">)</mo> <mspace width="thinmathspace"></mspace> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle x_{p}(t)=A\cos(\omega _{p}t+\phi (t))\,}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/0ae6818e72446e592be07f514e322b7005390e2e" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.005ex; width:25.793ex; height:3.009ex;" alt="{\displaystyle x_{p}(t)=A\cos(\omega _{p}t+\phi (t))\,}" /></span></dd></dl> <p>La phase instantanée de la porteuse est donnée par : </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 \Omega (t)=\omega _{p}t+\phi (t)\,}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi mathvariant="normal">Ω</mi> <mo stretchy="false">(</mo> <mi>t</mi> <mo stretchy="false">)</mo> <mo>=</mo> <msub> <mi>ω</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>p</mi> </mrow> </msub> <mi>t</mi> <mo>+</mo> <mi>ϕ</mi> <mo stretchy="false">(</mo> <mi>t</mi> <mo stretchy="false">)</mo> <mspace width="thinmathspace"></mspace> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \Omega (t)=\omega _{p}t+\phi (t)\,}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/195dac32ff59baa0ee6578739db07a26a0cf65b5" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.005ex; width:18.032ex; height:3.009ex;" alt="{\displaystyle \Omega (t)=\omega _{p}t+\phi (t)\,}" /></span></dd></dl> <p>Soit un signal modulant : </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)\,}"> <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> <mspace width="thinmathspace"></mspace> </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/2fca744c205bad203a25ce5ae97a5020d79edadb" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:5.076ex; height:2.843ex;" alt="{\displaystyle m(t)\,}" /></span></dd></dl> <p>Moduler en phase le signal revient à effectuer l'opération suivante : </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 \phi (t)=K_{p}.m(t)\,}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>ϕ</mi> <mo stretchy="false">(</mo> <mi>t</mi> <mo stretchy="false">)</mo> <mo>=</mo> <msub> <mi>K</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>p</mi> </mrow> </msub> <mo>.</mo> <mi>m</mi> <mo stretchy="false">(</mo> <mi>t</mi> <mo stretchy="false">)</mo> <mspace width="thinmathspace"></mspace> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \phi (t)=K_{p}.m(t)\,}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/2ec4727369b3bf4630bf6d9b6f33e652c23b99b7" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.005ex; width:16.275ex; height:3.009ex;" alt="{\displaystyle \phi (t)=K_{p}.m(t)\,}" /></span></dd></dl> <p>Le signal modulé s'écrit : </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 e(t)=A\cos(\omega _{p}t+K_{p}m(t))\,}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>e</mi> <mo stretchy="false">(</mo> <mi>t</mi> <mo stretchy="false">)</mo> <mo>=</mo> <mi>A</mi> <mi>cos</mi> <mo>⁡</mo> <mo stretchy="false">(</mo> <msub> <mi>ω</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>p</mi> </mrow> </msub> <mi>t</mi> <mo>+</mo> <msub> <mi>K</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>p</mi> </mrow> </msub> <mi>m</mi> <mo stretchy="false">(</mo> <mi>t</mi> <mo stretchy="false">)</mo> <mo stretchy="false">)</mo> <mspace width="thinmathspace"></mspace> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle e(t)=A\cos(\omega _{p}t+K_{p}m(t))\,}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/14fdb198c40a7bc849ef37d5803983f233e7476a" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.005ex; width:28.175ex; height:3.009ex;" alt="{\displaystyle e(t)=A\cos(\omega _{p}t+K_{p}m(t))\,}" /></span></dd></dl> <div class="mw-heading mw-heading3"><h3 id="Cas_d'un_signal_sinusoïdal"><span id="Cas_d.27un_signal_sinuso.C3.AFdal"></span>Cas d'un signal sinusoïdal</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Modulation_de_phase&veaction=edit&section=2" title="Modifier la section : Cas d'un signal sinusoïdal" class="mw-editsection-visualeditor"><span>modifier</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Modulation_de_phase&action=edit&section=2" title="Modifier le code source de la section : Cas d'un signal sinusoïdal"><span>modifier le code</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure typeof="mw:File/Thumb"><a href="/wiki/Fichier:Phase_Modulation.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/7/72/Phase_Modulation.png/200px-Phase_Modulation.png" decoding="async" width="200" height="316" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/72/Phase_Modulation.png/300px-Phase_Modulation.png 1.5x, //upload.wikimedia.org/wikipedia/commons/7/72/Phase_Modulation.png 2x" data-file-width="329" data-file-height="520" /></a><figcaption>modulation de phase</figcaption></figure> <p>Soit un signal modulant sinusoïdal : </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)=A_{m}\cos(\omega _{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> <mo>=</mo> <msub> <mi>A</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>m</mi> </mrow> </msub> <mi>cos</mi> <mo>⁡</mo> <mo stretchy="false">(</mo> <msub> <mi>ω</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>m</mi> </mrow> </msub> <mi>t</mi> <mo stretchy="false">)</mo> <mspace width="thinmathspace"></mspace> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle m(t)=A_{m}\cos(\omega _{m}t)\,}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/4e04bf83d6b0ba53e67f2b3e475f40f83790e616" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:20.861ex; height:2.843ex;" alt="{\displaystyle m(t)=A_{m}\cos(\omega _{m}t)\,}" /></span></dd></dl> <p>Le signal modulé devient alors : </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 e(t)=A\cos(\omega _{p}t+K_{p}A_{m}\cos(\omega _{m}t))\,}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>e</mi> <mo stretchy="false">(</mo> <mi>t</mi> <mo stretchy="false">)</mo> <mo>=</mo> <mi>A</mi> <mi>cos</mi> <mo>⁡</mo> <mo stretchy="false">(</mo> <msub> <mi>ω</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>p</mi> </mrow> </msub> <mi>t</mi> <mo>+</mo> <msub> <mi>K</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>p</mi> </mrow> </msub> <msub> <mi>A</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>m</mi> </mrow> </msub> <mi>cos</mi> <mo>⁡</mo> <mo stretchy="false">(</mo> <msub> <mi>ω</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>m</mi> </mrow> </msub> <mi>t</mi> <mo stretchy="false">)</mo> <mo stretchy="false">)</mo> <mspace width="thinmathspace"></mspace> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle e(t)=A\cos(\omega _{p}t+K_{p}A_{m}\cos(\omega _{m}t))\,}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/b20dcef2896ddb87bc7502d32da68b2e4aba1167" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.005ex; width:36.172ex; height:3.009ex;" alt="{\displaystyle e(t)=A\cos(\omega _{p}t+K_{p}A_{m}\cos(\omega _{m}t))\,}" /></span></dd></dl> <p>On remarque que <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 \phi (t)}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>ϕ</mi> <mo stretchy="false">(</mo> <mi>t</mi> <mo stretchy="false">)</mo> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \phi (t)}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/23781b983d21d78467b65e7e32b9e7bc05d625f8" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:4.034ex; height:2.843ex;" alt="{\displaystyle \phi (t)}" /></span> varie entre <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 \phi (t)-\Delta \phi }"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>ϕ</mi> <mo stretchy="false">(</mo> <mi>t</mi> <mo stretchy="false">)</mo> <mo>−</mo> <mi mathvariant="normal">Δ</mi> <mi>ϕ</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \phi (t)-\Delta \phi }</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/e33cd5f7db6b0b3e8a87fa5db1c800bc2dbd8e8f" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:10.196ex; height:2.843ex;" alt="{\displaystyle \phi (t)-\Delta \phi }" /></span> et <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 \phi (t)+\Delta \phi }"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>ϕ</mi> <mo stretchy="false">(</mo> <mi>t</mi> <mo stretchy="false">)</mo> <mo>+</mo> <mi mathvariant="normal">Δ</mi> <mi>ϕ</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \phi (t)+\Delta \phi }</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/0174d64509a18ef84f4cfa5844a4dcc1698dce64" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:10.196ex; height:2.843ex;" alt="{\displaystyle \phi (t)+\Delta \phi }" /></span>, où <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 \Delta \phi }"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi mathvariant="normal">Δ</mi> <mi>ϕ</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \Delta \phi }</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/125968846e9883e0b0ddef5f1d70f53023ec74b0" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:3.321ex; height:2.509ex;" alt="{\displaystyle \Delta \phi }" /></span> représente la déviation maximale de phase. </p><p>On notera le lien fort existant entre la modulation de phase et la modulation de fréquence. Ainsi sur l'illustration, un signal décroissant produit un écart de fréquence alors qu'un signal croissant produit un écart inverse. </p> <div class="mw-heading mw-heading3"><h3 id="Cas_d'un_signal_commuté"><span id="Cas_d.27un_signal_commut.C3.A9"></span>Cas d'un signal commuté</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Modulation_de_phase&veaction=edit&section=3" title="Modifier la section : Cas d'un signal commuté" class="mw-editsection-visualeditor"><span>modifier</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Modulation_de_phase&action=edit&section=3" title="Modifier le code source de la section : Cas d'un signal commuté"><span>modifier le code</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><span typeof="mw:File"><a href="/wiki/Fichier:Bpskrp.png" class="mw-file-description" title="modulation bpsk"><img alt="modulation bpsk" src="//upload.wikimedia.org/wikipedia/commons/thumb/0/00/Bpskrp.png/500px-Bpskrp.png" decoding="async" width="500" height="160" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/0/00/Bpskrp.png 1.5x" data-file-width="535" data-file-height="171" /></a></span> </p><p>La modulation de phase par commutation de 180° est une modulation numérique illustrée ci-dessus. </p> <div class="mw-heading mw-heading3"><h3 id="Génération_de_la_modulation_de_phase"><span id="G.C3.A9n.C3.A9ration_de_la_modulation_de_phase"></span>Génération de la modulation de phase</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Modulation_de_phase&veaction=edit&section=4" title="Modifier la section : Génération de la modulation de phase" class="mw-editsection-visualeditor"><span>modifier</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Modulation_de_phase&action=edit&section=4" title="Modifier le code source de la section : Génération de la modulation de phase"><span>modifier le code</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Il existe plusieurs façons de moduler une porteuse en phase. </p> <ul><li>La plus naturelle consiste à appliquer le signal modulant à un déphaseur par réseau LC ou RC. On utilisera généralement des diodes à capacité variable.</li></ul> <ul><li>Une autre méthode consiste à additionner deux porteuses en quadrature, après avoir modulé chacune d'elles en amplitude. Si les signaux modulant en amplitude sont correctement choisis, la composition des deux porteuses ainsi modulées donne une porteuse à amplitude constante modulée en phase.</li></ul> <p>Ce type de modulateur, dit "I-Q" est facilement réalisable à l'aide de circuits intégrés numériques. </p> <ul><li>On peut enfin prendre la dérivée du signal modulant, et appliquer ce signal différencié à un modulateur de fréquence (par exemple à diode à capacité variable). Ce type de modulateur est souvent utilisé en radiotéléphonie analogique.</li></ul> <div class="mw-heading mw-heading2"><h2 id="Notes_et_références"><span id="Notes_et_r.C3.A9f.C3.A9rences"></span>Notes et références</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Modulation_de_phase&veaction=edit&section=5" title="Modifier la section : Notes et références" class="mw-editsection-visualeditor"><span>modifier</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Modulation_de_phase&action=edit&section=5" title="Modifier le code source de la section : Notes et références"><span>modifier le code</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="references-small decimal" style=""> </div> <div class="mw-heading mw-heading2"><h2 id="Voir_aussi">Voir aussi</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Modulation_de_phase&veaction=edit&section=6" title="Modifier la section : Voir aussi" class="mw-editsection-visualeditor"><span>modifier</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Modulation_de_phase&action=edit&section=6" title="Modifier le code source de la section : Voir aussi"><span>modifier le code</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="Articles_connexes">Articles connexes</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Modulation_de_phase&veaction=edit&section=7" title="Modifier la section : Articles connexes" class="mw-editsection-visualeditor"><span>modifier</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Modulation_de_phase&action=edit&section=7" title="Modifier le code source de la section : Articles connexes"><span>modifier le code</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Phase-shift_keying" title="Phase-shift keying">Phase-shift keying</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="Liens_externes">Liens externes</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Modulation_de_phase&veaction=edit&section=8" title="Modifier la section : Liens externes" class="mw-editsection-visualeditor"><span>modifier</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Modulation_de_phase&action=edit&section=8" title="Modifier le code source de la section : Liens externes"><span>modifier le code</span></a><span class="mw-editsection-bracket">]</span></span></div> <p class="mw-empty-elt"> </p> <ul><li class="mw-empty-elt"></li> <li class="mw-empty-elt"></li> <li><div class="liste-horizontale"><span class="wd_identifiers">Notices dans des dictionnaires ou encyclopédies généralistes<span class="noprint wikidata-linkback skin-invert"><span class="mw-valign-baseline noviewer" typeof="mw:File"><a href="https://www.wikidata.org/wiki/Q750463?uselang=fr#identifiers" title="Voir et modifier les données sur Wikidata"><img alt="Voir et modifier les données sur Wikidata" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/20px-Blue_pencil.svg.png" decoding="async" width="10" height="10" class="mw-file-element" data-file-width="600" data-file-height="600" /></a></span></span></span> : <ul><li><a rel="nofollow" class="external text" href="https://www.britannica.com/technology/phase-modulation"><i>Britannica</i></a></li> <li><a rel="nofollow" class="external text" href="https://denstoredanske.lex.dk//fasemodulation/"><i>Den Store Danske Encyklopædi</i></a></li> </ul></div></li> <li><div class="liste-horizontale"><span class="wd_identifiers"><a href="/wiki/Autorit%C3%A9_(sciences_de_l%27information)" title="Autorité (sciences de l'information)">Notices d'autorité</a><span class="noprint wikidata-linkback skin-invert"><span class="mw-valign-baseline noviewer" typeof="mw:File"><a href="https://www.wikidata.org/wiki/Q750463?uselang=fr#identifiers" title="Voir et modifier les données sur Wikidata"><img alt="Voir et modifier les données sur Wikidata" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/20px-Blue_pencil.svg.png" decoding="async" width="10" height="10" class="mw-file-element" data-file-width="600" data-file-height="600" /></a></span></span></span> : <ul><li><span class="nowrap uid noarchive"><a rel="nofollow" class="external text" href="http://d-nb.info/gnd/4174163-8">GND</a></span></li> </ul></div></li></ul> <div class="navbox-container" style="clear:both;"> <table class="navbox collapsible noprint autocollapse" style=""> <tbody><tr><th class="navbox-title" colspan="2" style=""><div style="float:left; width:6em; text-align:left"><div class="noprint plainlinks nowrap tnavbar" style="padding:0; font-size:xx-small; color:var(--color-emphasized, #000000);"><a href="/wiki/Mod%C3%A8le:Palette_Mode_de_modulation" title="Modèle:Palette Mode de modulation"><abbr class="abbr" title="Voir ce modèle.">v</abbr></a> · <a class="external text" href="https://fr.wikipedia.org/w/index.php?title=Mod%C3%A8le:Palette_Mode_de_modulation&action=edit"><abbr class="abbr" title="Modifier ce modèle. Merci de prévisualiser avant de sauvegarder.">m</abbr></a></div></div><div style="font-size:110%"><a href="/wiki/Modulation_du_signal" title="Modulation du signal">Modes de modulation</a></div></th> </tr> <tr> <th class="navbox-group" style="">Analogiques</th> <td class="navbox-list" style=""><div class="liste-horizontale"> <ul><li><a href="/wiki/Modulation_d%27amplitude" title="Modulation d'amplitude">Modulation d'amplitude</a> (AM)</li> <li><a href="/wiki/Bande_lat%C3%A9rale_unique" title="Bande latérale unique">Bande latérale unique</a> (BLU)</li> <li><a href="/wiki/Modulation_de_fr%C3%A9quence" title="Modulation de fréquence">Modulation de fréquence</a> (FM)</li> <li><a class="mw-selflink selflink">Modulation de phase</a> (PM)</li> <li><a href="/wiki/Modulation_d%27amplitude_en_st%C3%A9r%C3%A9o" title="Modulation d'amplitude en stéréo">Modulation d'amplitude en stéréo</a> (AM stéréo)</li> <li><a href="/wiki/Bandes_lat%C3%A9rales_ind%C3%A9pendantes" title="Bandes latérales indépendantes">Bandes latérales indépendantes</a> (BLI) B8E</li></ul> </div></td> </tr> <tr> <th class="navbox-group" style="">Numériques</th> <td class="navbox-list navbox-even" style=""><div class="liste-horizontale"> <ul><li><a href="/wiki/Modulation_d%27amplitude_et_de_phase" title="Modulation d'amplitude et de phase">Modulation d'amplitude et de phase</a> (APSK)</li> <li><a href="/wiki/Modulation_par_d%C3%A9placement_d%27amplitude" title="Modulation par déplacement d'amplitude">Modulation par déplacement d'amplitude</a> (ASK)</li> <li><a href="/wiki/Complementary_code_keying" title="Complementary code keying">Complementary code keying</a> (CCK)</li> <li><a href="/w/index.php?title=Continuous_phase_modulation&action=edit&redlink=1" class="new" title="Continuous phase modulation (page inexistante)">Continuous phase modulation</a> (CPM)</li> <li><a href="/wiki/Modulation_par_d%C3%A9placement_de_fr%C3%A9quence" title="Modulation par déplacement de fréquence">Modulation par déplacement de fréquence</a> (FSK)</li> <li><a href="/wiki/Minimum-shift_keying" title="Minimum-shift keying">Minimum-shift keying</a> (MSK)</li> <li><a href="/wiki/Orthogonal_frequency-division_multiplexing" title="Orthogonal frequency-division multiplexing">Orthogonal frequency-division multiplexing</a> (OFDM)</li> <li><a href="/wiki/OFDMA" title="OFDMA">OFDMA</a></li> <li><a href="/wiki/Modulation_tout_ou_rien" title="Modulation tout ou rien">Modulation tout ou rien</a> (OOK)</li> <li><a href="/wiki/Modulation_d%27impulsions_en_position" title="Modulation d'impulsions en position">Modulation en position d'impulsions</a> (PPM)</li> <li><a href="/wiki/Phase-shift_keying" title="Phase-shift keying">Phase-shift keying</a> (PSK)</li> <li><a href="/wiki/Modulation_d%27amplitude_en_quadrature" title="Modulation d'amplitude en quadrature">Modulation d'amplitude en quadrature</a> (QAM)</li> <li><a href="/w/index.php?title=Trellis_modulation&action=edit&redlink=1" class="new" title="Trellis modulation (page inexistante)">Trellis modulation</a> (TCM)</li></ul> </div></td> </tr> <tr> <th class="navbox-group" style=""><a href="/wiki/%C3%89talement_de_spectre" title="Étalement de spectre">Étalement de spectre</a></th> <td class="navbox-list" style=""><div class="liste-horizontale"> <ul><li><a href="/wiki/Direct-sequence_spread_spectrum" title="Direct-sequence spread spectrum">Direct-sequence spread spectrum</a> (DSSS)</li> <li><a href="/wiki/%C3%89talement_de_spectre_par_saut_de_fr%C3%A9quence" title="Étalement de spectre par saut de fréquence">Étalement de spectre par saut de fréquence</a> (FHSS)</li></ul> </div></td> </tr> </tbody></table> </div> <ul id="bandeau-portail" class="bandeau-portail"><li><span class="bandeau-portail-element"><span class="bandeau-portail-icone"><span class="noviewer skin-invert-image" typeof="mw:File"><a href="/wiki/Portail:%C3%89lectricit%C3%A9_et_%C3%A9lectronique" title="Portail de l’électricité et de l’électronique"><img alt="icône décorative" 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