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Terdapat 27 bahasa" > <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-27" 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">27 bahasa</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_%D9%85%D8%B7%D8%A7%D9%84%D9%8A_%D9%85%D8%AA%D8%B9%D8%A7%D9%85%D8%AF" title="تضمين مطالي متعامد – Arab" lang="ar" hreflang="ar" data-title="تضمين مطالي متعامد" data-language-autonym="العربية" data-language-local-name="Arab" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Modulaci%C3%B3_d%27amplitud_en_quadratura" title="Modulació d'amplitud en quadratura – Katalan" lang="ca" hreflang="ca" data-title="Modulació d'amplitud en quadratura" data-language-autonym="Català" data-language-local-name="Katalan" 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/Kvadraturn%C3%AD_amplitudov%C3%A1_modulace" title="Kvadraturní amplitudová modulace – Cheska" lang="cs" hreflang="cs" data-title="Kvadraturní amplitudová modulace" data-language-autonym="Čeština" data-language-local-name="Cheska" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Quadraturamplitudenmodulation" title="Quadraturamplitudenmodulation – Jerman" lang="de" hreflang="de" data-title="Quadraturamplitudenmodulation" data-language-autonym="Deutsch" data-language-local-name="Jerman" 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/Quadrature_amplitude_modulation" title="Quadrature amplitude modulation – Inggris" lang="en" hreflang="en" data-title="Quadrature amplitude modulation" data-language-autonym="English" data-language-local-name="Inggris" 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_amplitud_en_cuadratura" title="Modulación de amplitud en cuadratura – Spanyol" lang="es" hreflang="es" data-title="Modulación de amplitud en cuadratura" data-language-autonym="Español" data-language-local-name="Spanyol" 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/Kvadratuur-amplituudmodulatsioon" title="Kvadratuur-amplituudmodulatsioon – Esti" lang="et" hreflang="et" data-title="Kvadratuur-amplituudmodulatsioon" data-language-autonym="Eesti" data-language-local-name="Esti" 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%D8%A7%D8%B3%DB%8C%D9%88%D9%86_%DA%A9%DB%8C%D9%88%D8%A2%D8%A7%D9%85" title="مدولاسیون کیوآام – Persia" lang="fa" hreflang="fa" data-title="مدولاسیون کیوآام" data-language-autonym="فارسی" data-language-local-name="Persia" 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/QAM" title="QAM – Suomi" lang="fi" hreflang="fi" data-title="QAM" data-language-autonym="Suomi" data-language-local-name="Suomi" 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_en_quadrature" title="Modulation d'amplitude en quadrature – Prancis" lang="fr" hreflang="fr" data-title="Modulation d'amplitude en quadrature" data-language-autonym="Français" data-language-local-name="Prancis" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/Modulaci%C3%B3n_de_amplitude_en_cuadratura" title="Modulación de amplitude en cuadratura – Galisia" lang="gl" hreflang="gl" data-title="Modulación de amplitude en cuadratura" data-language-autonym="Galego" data-language-local-name="Galisia" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/QAM" title="QAM – Ibrani" lang="he" hreflang="he" data-title="QAM" data-language-autonym="עברית" data-language-local-name="Ibrani" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/Kvadrat%C3%BAra_amplit%C3%BAd%C3%B3modul%C3%A1ci%C3%B3" title="Kvadratúra amplitúdómoduláció – Hungaria" lang="hu" hreflang="hu" data-title="Kvadratúra amplitúdómoduláció" data-language-autonym="Magyar" data-language-local-name="Hungaria" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Modulazione_di_ampiezza_in_quadratura" title="Modulazione di ampiezza in quadratura – Italia" lang="it" hreflang="it" data-title="Modulazione di ampiezza in quadratura" data-language-autonym="Italiano" data-language-local-name="Italia" 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/%E7%9B%B4%E8%A7%92%E4%BD%8D%E7%9B%B8%E6%8C%AF%E5%B9%85%E5%A4%89%E8%AA%BF" title="直角位相振幅変調 – Jepang" lang="ja" hreflang="ja" data-title="直角位相振幅変調" data-language-autonym="日本語" data-language-local-name="Jepang" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EC%A7%81%EA%B5%90_%EC%A7%84%ED%8F%AD_%EB%B3%80%EC%A1%B0" title="직교 진폭 변조 – Korea" lang="ko" hreflang="ko" data-title="직교 진폭 변조" data-language-autonym="한국어" data-language-local-name="Korea" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Pemodulatan_amplitud_kuadratur" title="Pemodulatan amplitud kuadratur – Melayu" lang="ms" hreflang="ms" data-title="Pemodulatan amplitud kuadratur" data-language-autonym="Bahasa Melayu" data-language-local-name="Melayu" 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/Kwadratuur-amplitudemodulatie" title="Kwadratuur-amplitudemodulatie – Belanda" lang="nl" hreflang="nl" data-title="Kwadratuur-amplitudemodulatie" data-language-autonym="Nederlands" data-language-local-name="Belanda" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Modulacja_QAM" title="Modulacja QAM – Polski" lang="pl" hreflang="pl" data-title="Modulacja QAM" data-language-autonym="Polski" data-language-local-name="Polski" 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_de_amplitude_em_quadratura" title="Modulação de amplitude em quadratura – Portugis" lang="pt" hreflang="pt" data-title="Modulação de amplitude em quadratura" data-language-autonym="Português" data-language-local-name="Portugis" 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%9A%D0%B2%D0%B0%D0%B4%D1%80%D0%B0%D1%82%D1%83%D1%80%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="Квадратурная модуляция – Rusia" lang="ru" hreflang="ru" data-title="Квадратурная модуляция" data-language-autonym="Русский" data-language-local-name="Rusia" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-su mw-list-item"><a href="https://su.wikipedia.org/wiki/Quadrature_Amplitude_Modulation" title="Quadrature Amplitude Modulation – Sunda" lang="su" hreflang="su" data-title="Quadrature Amplitude Modulation" data-language-autonym="Sunda" data-language-local-name="Sunda" 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/Kvadraturamplitudmodulering" title="Kvadraturamplitudmodulering – Swedia" lang="sv" hreflang="sv" data-title="Kvadraturamplitudmodulering" data-language-autonym="Svenska" data-language-local-name="Swedia" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-ta mw-list-item"><a href="https://ta.wikipedia.org/wiki/%E0%AE%95%E0%AF%81%E0%AE%B5%E0%AE%BE%E0%AE%AE%E0%AF%8D_%E0%AE%A4%E0%AF%8A%E0%AE%B4%E0%AE%BF%E0%AE%B2%E0%AF%8D%E0%AE%A8%E0%AF%81%E0%AE%9F%E0%AF%8D%E0%AE%AA%E0%AE%AE%E0%AF%8D" title="குவாம் தொழில்நுட்பம் – Tamil" lang="ta" hreflang="ta" data-title="குவாம் தொழில்நுட்பம்" data-language-autonym="தமிழ்" data-language-local-name="Tamil" class="interlanguage-link-target"><span>தமிழ்</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Karesel_genlik_mod%C3%BClasyonu" title="Karesel genlik modülasyonu – Turki" lang="tr" hreflang="tr" data-title="Karesel genlik modülasyonu" data-language-autonym="Türkçe" data-language-local-name="Turki" 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%9A%D0%B2%D0%B0%D0%B4%D1%80%D0%B0%D1%82%D1%83%D1%80%D0%BD%D0%BE-%D0%B0%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="Квадратурно-амплітудна модуляція – Ukraina" lang="uk" hreflang="uk" data-title="Квадратурно-амплітудна модуляція" data-language-autonym="Українська" data-language-local-name="Ukraina" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E6%AD%A3%E4%BA%A4%E5%B9%85%E5%BA%A6%E8%B0%83%E5%88%B6" 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class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="id" dir="ltr"><p><b>Modulasi amplitudo kuadratur</b> (<a href="/wiki/Bahasa_Inggris" title="Bahasa Inggris">bahasa Inggris</a>: <i><b>Quadrature amplitude modulation</b></i>; QAM) adalah sebuah skema <a href="/wiki/Modulasi" title="Modulasi">modulasi</a> yang membawa <a href="/wiki/Data" title="Data">data</a> dengan mengubah (memodulasi) <a href="/wiki/Amplitudo" title="Amplitudo">amplitudo</a> dari dua <a href="/wiki/Gelombang_pembawa" title="Gelombang pembawa">gelombang pembawa</a>. Kedua gelombang tersebut, biasanya <a href="/w/index.php?title=Sinusoid&action=edit&redlink=1" class="new" title="Sinusoid (halaman belum tersedia)">sinusoid</a>, <a href="/w/index.php?title=Berbeda_fase&action=edit&redlink=1" class="new" title="Berbeda fase (halaman belum tersedia)">berbeda fase</a> dengan yang lainnya sebesar 90° dan oleh karena itu disebut pembawa <a href="/w/index.php?title=Kuadratur&action=edit&redlink=1" class="new" title="Kuadratur (halaman belum tersedia)">kuadratur</a>. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Sekilas">Sekilas</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Modulasi_amplitudo_kuadratur&veaction=edit&section=1" title="Sunting bagian: Sekilas" class="mw-editsection-visualeditor"><span>sunting</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Modulasi_amplitudo_kuadratur&action=edit&section=1" title="Sunting kode sumber bagian: Sekilas"><span>sunting sumber</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Seperti skema <a href="/wiki/Modulasi" title="Modulasi">modulasi</a> lainnya, QAM membawa <a href="/wiki/Data" title="Data">data</a> dengan mengubah beberapa aspek dari sinyal pembawa, atau <a href="/wiki/Gelombang_pembawa" title="Gelombang pembawa">gelombang pembawa</a> (biasanya sinusoid). Dalam kasus QAM, amplitudo dari dua gelombang, saling berbeda fase sebesar 90 <a href="/wiki/Derajat_(satuan_sudut)" title="Derajat (satuan sudut)">derajat</a> diubah (dimodulasi) untuk mewakili sinyal data. </p> <div class="mw-heading mw-heading2"><h2 id="Demodulasi_pada_Modulasi_Amplitudo_Kuadratur">Demodulasi pada Modulasi Amplitudo Kuadratur</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Modulasi_amplitudo_kuadratur&veaction=edit&section=2" title="Sunting bagian: Demodulasi pada Modulasi Amplitudo Kuadratur" class="mw-editsection-visualeditor"><span>sunting</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Modulasi_amplitudo_kuadratur&action=edit&section=2" title="Sunting kode sumber bagian: Demodulasi pada Modulasi Amplitudo Kuadratur"><span>sunting sumber</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Pada Modulasi Amplitudo Kuadratur (MQAM), sinyal informasi digital dikodekan dalam bentuk simbol-simbol amplitudo dan beberapa fasa. Untuk menerima sinyal yang termodulasi ini, dibutuhkan suatu proses demodulasi atau dekode yang dapat mengubah kembali sinyal MQAM menjadi sinyal digital asli. </p><p>Adapun langkah-langkah cara demodulasi seperti berikut : </p> <ul><li>Sinyal MQAM yang diterima dikirimkan ke rangkaian pemulihan fase (<i>phase recovery circuit</i>) dan rangkaian pemulihan timing (<i>timing recovery circuit</i>) untuk memulihkan fasa dan timing sinyal.</li> <li>Selanjutnya, sinyal MQAM yang telah dipulihkan fasa dan timing-nya dipecah menjadi dua saluran, yaitu saluran In-phase (I) dan saluran Kuadratur (Q). Pada saluran I, sinyal asli dikodekan dalam bentuk amplitudo, sedangkan pada saluran Q, sinyal asli dikodekan dalam bentuk perubahan fasa.</li> <li>Setelah itu, sinyal pada saluran I dan Q dilakukan deteksi amplitudo dan deteksi fase untuk mendapatkan nilai amplitudo dan fase asli dari sinyal asli.</li> <li>Selanjutnya, nilai amplitudo dan fase asli yang telah dideteksi digabungkan kembali untuk mendapatkan sinyal digital asli.</li> <li>Terakhir, sinyal digital asli diteruskan ke proses selanjutnya, seperti decoding, error correction, atau proses lainnya sesuai dengan kebutuhan aplikasi.</li></ul> <p>Dalam proses demodulasi MQAM, perlu diperhatikan ketelitian dalam rangkaian pemulihan fasa dan timing, serta kualitas deteksi amplitudo dan deteksi fase untuk memastikan bahwa sinyal asli dapat dipulihkan dengan akurasi yang tinggi. </p> <div class="mw-heading mw-heading2"><h2 id="Lihat_pula">Lihat pula</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Modulasi_amplitudo_kuadratur&veaction=edit&section=3" title="Sunting bagian: Lihat pula" class="mw-editsection-visualeditor"><span>sunting</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Modulasi_amplitudo_kuadratur&action=edit&section=3" title="Sunting kode sumber bagian: Lihat pula"><span>sunting sumber</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Modulasi" title="Modulasi">Modulasi</a> untuk teknik modulasi lainnya</li> <li><a href="/w/index.php?title=Phase-shift_keying&action=edit&redlink=1" class="new" title="Phase-shift keying (halaman belum tersedia)">Phase-shift keying</a></li> <li><a href="/w/index.php?title=Carrierless_Amplitude_Phase_Modulation&action=edit&redlink=1" class="new" title="Carrierless Amplitude Phase Modulation (halaman belum tersedia)">Carrierless Amplitude Phase Modulation</a> (CAP)</li> <li><a href="/w/index.php?title=QAM_tuner&action=edit&redlink=1" class="new" title="QAM tuner (halaman belum tersedia)">QAM tuner untuk HDTV</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="Pranala_luar">Pranala luar</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Modulasi_amplitudo_kuadratur&veaction=edit&section=4" title="Sunting bagian: Pranala luar" class="mw-editsection-visualeditor"><span>sunting</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Modulasi_amplitudo_kuadratur&action=edit&section=4" title="Sunting kode sumber bagian: Pranala luar"><span>sunting sumber</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a rel="nofollow" class="external text" href="http://www.blondertongue.com/QAM-Transmodulator/QAM_defined.php">How imperfections affect QAM constellation</a> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20041112232234/http://www.blondertongue.com/QAM-Transmodulator/QAM_defined.php">Diarsipkan</a> 2004-11-12 di <a href="/wiki/Wayback_Machine" title="Wayback Machine">Wayback Machine</a>.</li></ul> <div class="mw-heading mw-heading2"><h2 id="Referensi">Referensi</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Modulasi_amplitudo_kuadratur&veaction=edit&section=5" title="Sunting bagian: Referensi" class="mw-editsection-visualeditor"><span>sunting</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Modulasi_amplitudo_kuadratur&action=edit&section=5" title="Sunting kode sumber bagian: Referensi"><span>sunting sumber</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><i>John G. Proakis</i>, "<i>Digital Communications, 3rd Edition</i>", <i>McGraw-Hill Book Co., 1995</i>. <a href="/wiki/Istimewa:Sumber_buku/0071138145" class="internal mw-magiclink-isbn">ISBN 0-07-113814-5</a></li> <li><i>Leon W. Couch III</i>, "<i>Digital and Analog Communication Systems, 6th Edition</i>", <i>Prentice-Hall, Inc., 2001</i>. <a href="/wiki/Istimewa:Sumber_buku/0130812234" class="internal mw-magiclink-isbn">ISBN 0-13-081223-4</a></li></ul>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Diperoleh dari "<a dir="ltr" href="https://id.wikipedia.org/w/index.php?title=Modulasi_amplitudo_kuadratur&oldid=25080275">https://id.wikipedia.org/w/index.php?title=Modulasi_amplitudo_kuadratur&oldid=25080275</a>"</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/wiki/Istimewa:Daftar_kategori" title="Istimewa:Daftar kategori">Kategori</a>: <ul><li><a href="/w/index.php?title=Kategori:Mode_modulasi_radio&action=edit&redlink=1" class="new" title="Kategori:Mode modulasi radio (halaman belum tersedia)">Mode modulasi radio</a></li><li><a href="/w/index.php?title=Kategori:Transmisi_data&action=edit&redlink=1" class="new" title="Kategori:Transmisi data (halaman belum tersedia)">Transmisi data</a></li></ul></div><div id="mw-hidden-catlinks" class="mw-hidden-catlinks mw-hidden-cats-hidden">Kategori tersembunyi: <ul><li><a href="/wiki/Kategori:Templat_webarchive_tautan_wayback" title="Kategori:Templat webarchive tautan wayback">Templat webarchive tautan wayback</a></li><li><a href="/wiki/Kategori:Halaman_yang_menggunakan_pranala_magis_ISBN" title="Kategori:Halaman yang menggunakan pranala magis ISBN">Halaman yang menggunakan pranala magis ISBN</a></li></ul></div></div> </div> </main> </div> <div class="mw-footer-container"> <footer id="footer" class="mw-footer" > <ul id="footer-info"> <li id="footer-info-lastmod"> Halaman ini terakhir diubah pada 28 Desember 2023, pukul 09.23.</li> <li id="footer-info-copyright">Teks tersedia di bawah <a rel="nofollow" class="external text" href="https://creativecommons.org/licenses/by-sa/4.0/deed.en">Lisensi Atribusi-BerbagiSerupa Creative Commons</a>; ketentuan tambahan mungkin berlaku. 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