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Statements

Subject Item: dbr:Amplitude-companded_single-sideband_modulation
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Subject Item: dbr:Amplitude_and_phase-shift_keying
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Subject Item: dbr:Amplitude_modulation
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Subject Item: dbr:Beat_frequency_oscillator
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Subject Item: dbr:Behringer_Poly_D
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Subject Item: dbr:Punctuation
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Subject Item: dbr:Quadrature_amplitude_modulation
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Subject Item: dbr:Scattering_parameters
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Subject Item: dbr:Electro-optic_modulator
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Subject Item: dbr:Electromagnetic_spectrum
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Subject Item: dbr:Electronic_engineering
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Subject Item: dbr:Electronic_media
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Subject Item: dbr:Electronic_warfare
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Subject Item: dbr:Elephant_communication
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Subject Item: dbr:Enhanced_Data_rates_for_GSM_Evolution
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Subject Item: dbr:Envelope_(waves)
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Subject Item: dbr:List_of_amateur_radio_frequency_bands_in_India
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Subject Item: dbr:List_of_amateur_radio_modes
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Subject Item: dbr:MIDI
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Subject Item: dbr:Mobitex
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Subject Item: dbr:Modem
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Subject Item: dbr:Modulation
rdf:type: owl:Thing dbo:Election
rdfs:label: Modulasi Modulado (tekniko) تضمين (إلكترونيات) Modulatie (radio) Модуляция Modulation du signal Διαμόρφωση σήματος 변조 Modulation Modulace 調變 Modulació (telecomunicacions) Modhnú Modulation (Technik) Modulación (telecomunicación) 変調方式 Modulacja Modulation Modulação Модуляція Modulazio Modulazione
rdfs:comment: En telekomunikado, modulado (de la latina modulatio = takto, ritmo) estas informteknika procedo, ĉe kiu transsendota utila signalo (ekzemple muziko, lingvo, datumoj) modifas (modulas) portantan signalon. Per ĉi tio altfrekvenca transsendado de malaltfrekvenca utila signalo estas ebligita. La transsendata signalo okupas en la skalo de la portanta frekvenco bendlarĝon dependan de la utila signalo. La informo estas regajnata flanke de la ricevanto per malmodulilo. Sa bhfisic, tugtar modhnú ar chur i bhfeidhm athruithe rialta ar chúlra éigin, léas cáithníní nó radaíocht de ghnáth, go minic chun eolas a iompar trí mheán an léis. Úsáidtear comhartha tarchurtha chun léas leictreon taobh istigh de theilifíseán a mhodhnú chun an pictiúr a atáirgeadh. Tá criostail is leachtanna ann ar féidir a úsáid, agus réimsí leictreacha i bhfeidhm orthu, chun léis solais a mhodhnú. Modulación engloba el conjunto de técnicas que se usan para transportar información sobre una onda portadora, típicamente una onda sinusoidal. Estas técnicas permiten un mejor aprovechamiento del canal de comunicación lo que posibilita transmitir más información de forma simultánea además de mejorar la resistencia contra posibles ruidos e interferencias. Según la American National Standard for Telecommunications, la modulación es el proceso, o el resultado del proceso, de variar una característica de una onda portadora de acuerdo con una señal que transporta información. El propósito de la modulación es sobreponer señales en las ondas portadoras. 调制（英語：modulation）是一种将一個或多個週期性的載波混入想傳送之信号的技術，常用于无线电波的传播与通信、利用电话线的数据通信等各方面。依调制信号的不同，可区分为及，這些不同的调制，是以不同的方法，將信号和载波合成的技术。调制的逆过程叫做「解调」，用以解出原始的信号。在模拟调制之下，一个原始模拟信号会被混入载波当中。例如在幅度调制，欲传送的讯息被置于载波信号的幅度里面；在频率调变，欲传送的讯息被置于载波信号的频率里面。模拟调制是最初期的调制方式，被广泛应用于，电台广播是一个最为经典的例子。近年来的通信系统则大量使用数字调制技术，首先将离散的原始信息（例如英文字母）编码成一串由0和1所组成的位元流，再以特定的方式于传送信号中表示出0和1。例如频率偏移调制对于0和1使用了两种不同的频率振荡。而更加复杂的数位调制方法甚至可能引入多个载波，例如应用于WiFi、数字广播及数字电视的正交频分复用技术。変調方式（へんちょうほうしき、英: modulation method）とは、電気通信において、基本信号（搬送波）に対して、その振幅、周波数、位相などを変化させる（変調する）ことにより信号を伝送する方式である。 Modulation avser inom vågrörelseläran en process som får en egenskap hos en våg att variera i takt med en annan, styrande våg. Denna process kan vara avsiktligt utnyttjad eller spontan och oavsiktlig. Vid kommunikation med vågor är modulation en avsiktlig process för att få en bärvåg att variera i takt med en meddelandesignal. Det klassiska exemplet är modulation av radiovågor. Модуля́ция (лат. modulatio — размеренность, ритмичность) — процесс изменения одного или нескольких параметров модулируемого несущего сигнала при помощи модулирующего сигнала. Передаваемая информация заложена в модулирующем сигнале, а роль переносчика информации выполняет высокочастотное колебание, называемое несущим (модулируемым). Модуляция, таким образом, представляет собой процесс «посадки» информационного колебания на заведомо известную несущую с целью получения нового модулированного сигнала. En télécommunications, le signal transportant une information doit passer par un moyen de transmission entre un émetteur et un récepteur. Le signal est rarement adapté à la transmission directe par le canal de communication choisi, hertzien, filaire, ou optique. La modulation peut être définie comme le processus par lequel le signal est transformé de sa forme originale en une forme adaptée au canal de transmission, par exemple en faisant varier les paramètres d'amplitude et d'argument (phase/fréquence) d'une onde sinusoïdale appelée porteuse.Le dispositif qui effectue cette modulation, en général électronique, est un modulateur (voir modem).L'opération inverse permettant d'extraire le signal de la porteuse est la démodulation. In electronics and telecommunications, modulation is the process of varying one or more properties of a periodic waveform, called the carrier signal, with a separate signal called the modulation signal that typically contains information to be transmitted. For example, the modulation signal might be an audio signal representing sound from a microphone, a video signal representing moving images from a video camera, or a digital signal representing a sequence of binary digits, a bitstream from a computer. The carrier is higher in frequency than the modulation signal. In radio communication the modulated carrier is transmitted through space as a radio wave to a radio receiver. Another purpose is to transmit multiple channels of information through a single communication medium, using frequenc Modulatie is het combineren van een laagfrequent informatiesignaal met een draaggolf met een hogere frequentie, zodat een signaal ontstaat met een frequentieband rondom de frequentie van de draaggolf. Stel dat een radio- of televisiesignaal direct zonder draaggolf draadloos wordt uitgezonden. Het audiosignaal dat door een microfoon wordt opgewekt, en frequenties onder 20 kHz bevat, zou dus dan met die frequenties worden uitgezonden. Er zou dan maar één zender tegelijk in bedrijf kunnen zijn, maar het grootste probleem is dat dergelijke frequenties zich niet goed voortplanten door de atmosfeer. ( 다른 뜻에 대해서는 변조 (동음이의) 문서를 참고하십시오.) 변조(變調)는 정보를 저장, 전송하기 위해 전기적 신호로 변환하는 것을 말한다. 보다 정확히는 원하는 정보에 따라 반송파(carrier) 신호의 진폭, 주파수, 위상 정보를 변경하여 변조된 신호를 얻는다. 신호를 전송하기 전에 변조하는 것은 여러 가지 이유가 있다. 그 중에는 하나의 전송 매체를 여러 사용자가 공유하도록 하는 것과 (다중 접속), 신호의 특성을 전송 매체의 물리적인 특성에 맞추기 위해서이다. 변조를 수행하는 장치를 변조기(modulator)라고 하며 이 반대의 과정을 수행하는 장치를 복조기(demodulator)라고 한다. 변조기와 복조기의 기능을 둘 다 수행하는 장치는 모뎀(MODEM)이라고 한다. 변조는 일반적으로 신호의 전송에 따른 문제점을 극복하여 다음과 같은 특성을 가지도록 한다: * 전자기파의 손쉬운 전달 (저손실, 저분산) * 다중화 - 여러 데이터 신호를 각각 다른 반송파 주파수에 실어 하나의 주파수 대역을 통해 전송 * 더 작고 지향적인 안테나의 사용 La modulazione, in telecomunicazioni ed elettronica, indica l'insieme delle tecniche di trasmissione finalizzate ad imprimere un segnale elettrico o elettromagnetico, detto modulante, generalmente contenente informazione cioè variabile in maniera aleatoria nel tempo, su un altro segnale elettrico o elettromagnetico, detto portante, sviluppato ad alta frequenza (frequenza portante >> frequenza modulante). Il risultato della modulazione è la conversione del segnale modulante dalla banda base alla cosiddetta banda traslata (segnale modulato), secondo il teorema della modulazione. Στον τομέα των ηλεκτρονικών διαμόρφωση είναι η διαδικασία της αλλαγής ενός ή περισσότερων χαρακτηριστικών μιας περιοδικής κυματομορφής υψηλής συχνότητας , οριζόμενο ως φέρον σήμα , βάσει ενός άλλου αυξομειούμενου σήματος. Για παράδειγμα ο μουσικός ο οποίος μπορεί να κλιμακώσει τον ήχο σε ένα μουσικό όργανο μεταβάλοντας την ένταση τον χρονισμό και τον τόνο του. Οι τρεις βασικές παραμέτροι της περιοδικής κυματομορφής είναι το πλάτος («ενταση»), η φάση («χρονισμός») και η συχνότητά της («τόνος»),που μπορούν να αλλάξουν από ένα σήμα αποτελούμενο από χαμηλές συχνότητες ώστε να προκύψει το διαμορφωμένο σήμα. Η υψηλής συχνότητας διαμορφωμένη κυματομορφή χρησιμοποιείται ως μεταφορέας του αρχικού σήματος. En telecomunicació el terme modulació engloba el conjunt de tècniques utilitzades per a transportar informació sobre una ona portadora, típicament una ona sinusoidal. Aquestes tècniques permeten un millor aprofitament del canal de comunicació, la qual cosa possibilita transmetre més informació de forma simultània i protegint-la de possibles interferències i sorolls. Bàsicament, la modulació consisteix a fer que un paràmetre de l'ona portadora canviï de valor d'acord amb les variacions del senyal modulador, que és la informació que volem transmetre. في الإلكترونيات والاتصالات، التضمين (بالإنجليزية: Modulation)‏ عملية تركيب لموجتين كهربائيتين أحدهما الموجة الحاملة وتكون ذات تردد عالي، والموجة المحمولة ذات تردد منخفض. مثال على ذلك البث في الراديو: ترسل محطة الإذاعة صوت المذيع كموجة ذات تردد منخفض راكبة على موجة كهرومغناطيسية ذات تردد عالي. ويستقبلهما جهاز الراديو وبه دوائر إلكترونية خاصة تفك الموجتين عن بعضهما البعض، وتكبر الموجة المحمولة كهربائيا وتوصلها بمكبر الصوت فنسمع المذيع من جهاز الراديو. التضمين أو التراكب يتم بين الموجة الحاملة (ذات تردد عالي) ، وموجة «محمولة» يقال لها الإشارة المعدِّلة وهي تحمل المعلومات المراد نقلها. Modulacja – samorzutna lub celowa zmiana parametrów sygnału. Jeżeli modulowane są sygnały sinusoidalne, to proces ten może powodować zmiany amplitudy, częstotliwości lub fazy drgań. W przypadku fal prostokątnych (często stosowanych w technice cyfrowej) procesowi modulacji podlega szerokość, amplituda, pozycja (układ) oraz gęstość impulsów. Częstotliwość zmian wywołanych modulacją jest dużo mniejsza od częstotliwości fali. Przykładem może być modulowany dźwięk syreny alarmowej o zmiennej częstotliwości. Modulazioa seinale baten aldaketa sistematikoa da. Seinale hau eramailea da, eta beste seinale baten ezaugarrien arabera aldatzen da. Beste seinale hau modulatzailea da, eta informazioa dauka. Modulazioan lortzen den seinalea transmititzeko egokiagoa izatea da prozesu honen helburua. Modulazioa osatzen duten seinaleen izaeraren arabera sailka daitezke, bai seinale eramailea bai modulatzailea. Aipagarria da bereziki modulazio digitala eramaile analogikoarekin, informazio digitala telefono sare analogikotik bidaltzea ahalbidetzen duen metodoa, alegia. Modulace je nelineární proces, kterým se mění charakter vhodného nosného signálu pomocí modulujícího signálu. Modulace se velmi často používá při přenosu nebo záznamu elektrických nebo optických signálů. Nejběžnějšími příklady zařízení spotřební elektroniky využívajících modulaci jsou například rozhlasový a televizní přijímač, mobilní telefon, různé typy modemů, satelitní přijímače atd. Většina zdrojů zpráv generuje signály, které ve své původní podobě nejsou vhodné pro dálkový přenos. Proto vznikla modulace, která posílí signál (nesenou informaci), lze ho tak přenášet na delší vzdálenost. Модуля́ція (англ. modulation) — процес зміни в часі за заданим законом показників (характеристик) якогось з регуляторних фізичних процесів. Прикладне значення має модуляція коливань — накладання низькочастотного інформаційного сигналу на високочастотний сигнал-носій для передавання даних на великі відстані. Модуляція радіосигналу — процес зміни одного або кількох параметрів високочастотного модульованого коливання за законом низькочастотного інформаційного сигналу. Modulasi adalah proses perubahan (varying) suatu gelombang periodik sehingga menjadikan suatu sinyal mampu membawa suatu informasi. Dengan proses modulasi, ekuensi tinggi. Terdapat tiga parameter kunci pada suatu gelombang sinusiuodal yaitu: amplitudo, fase dan frekuensi. Ketiga parameter tersebut dapat dimodifikasi sesuai dengan sinyal informasi (berfrekuensi rendah) untuk membentuk sinyal yang termodulasi. Informasi yang dikirim bisa berupa data analog maupun digital sehingga terdapat dua jenis modulasi yaitu * modulasi analog * modulasi digital Der Begriff Modulation (lat. modulatio = Takt, Rhythmus) beschreibt einen Vorgang in der Nachrichtentechnik, bei dem ein zu übertragendes Nutzsignal (beispielsweise Musik, Sprache, Daten) einen sogenannten Träger verändert (moduliert). Dadurch wird eine hochfrequente Übertragung des niederfrequenten Nutzsignals ermöglicht. Das Sendesignal belegt im Bereich der Trägerfrequenz eine vom Nutzsignal abhängige Bandbreite. Die Nachricht wird empfangsseitig durch einen Demodulator wieder zurückgewonnen. Modulação é o processo de variação de altura (amplitude), de intensidade, frequência, do comprimento e/ou da fase de onda numa onda de transporte, que deforma uma das características de um sinal portador (amplitude, fase ou frequência) que varia proporcionalmente ao sinal modulador.
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dbo:abstract: Modulacja – samorzutna lub celowa zmiana parametrów sygnału. Jeżeli modulowane są sygnały sinusoidalne, to proces ten może powodować zmiany amplitudy, częstotliwości lub fazy drgań. W przypadku fal prostokątnych (często stosowanych w technice cyfrowej) procesowi modulacji podlega szerokość, amplituda, pozycja (układ) oraz gęstość impulsów. Częstotliwość zmian wywołanych modulacją jest dużo mniejsza od częstotliwości fali. Przykładem może być modulowany dźwięk syreny alarmowej o zmiennej częstotliwości. 调制（英語：modulation）是一种将一個或多個週期性的載波混入想傳送之信号的技術，常用于无线电波的传播与通信、利用电话线的数据通信等各方面。依调制信号的不同，可区分为及，這些不同的调制，是以不同的方法，將信号和载波合成的技术。调制的逆过程叫做「解调」，用以解出原始的信号。在模拟调制之下，一个原始模拟信号会被混入载波当中。例如在幅度调制，欲传送的讯息被置于载波信号的幅度里面；在频率调变，欲传送的讯息被置于载波信号的频率里面。模拟调制是最初期的调制方式，被广泛应用于，电台广播是一个最为经典的例子。近年来的通信系统则大量使用数字调制技术，首先将离散的原始信息（例如英文字母）编码成一串由0和1所组成的位元流，再以特定的方式于传送信号中表示出0和1。例如频率偏移调制对于0和1使用了两种不同的频率振荡。而更加复杂的数位调制方法甚至可能引入多个载波，例如应用于WiFi、数字广播及数字电视的正交频分复用技术。 Modulation avser inom vågrörelseläran en process som får en egenskap hos en våg att variera i takt med en annan, styrande våg. Denna process kan vara avsiktligt utnyttjad eller spontan och oavsiktlig. Vid kommunikation med vågor är modulation en avsiktlig process för att få en bärvåg att variera i takt med en meddelandesignal. Det klassiska exemplet är modulation av radiovågor. En telecomunicació el terme modulació engloba el conjunt de tècniques utilitzades per a transportar informació sobre una ona portadora, típicament una ona sinusoidal. Aquestes tècniques permeten un millor aprofitament del canal de comunicació, la qual cosa possibilita transmetre més informació de forma simultània i protegint-la de possibles interferències i sorolls. Bàsicament, la modulació consisteix a fer que un paràmetre de l'ona portadora canviï de valor d'acord amb les variacions del senyal modulador, que és la informació que volem transmetre. Les modulacions poden ser analògiques o digitals en funció de la naturalesa del senyal modulador. Στον τομέα των ηλεκτρονικών διαμόρφωση είναι η διαδικασία της αλλαγής ενός ή περισσότερων χαρακτηριστικών μιας περιοδικής κυματομορφής υψηλής συχνότητας , οριζόμενο ως φέρον σήμα , βάσει ενός άλλου αυξομειούμενου σήματος. Για παράδειγμα ο μουσικός ο οποίος μπορεί να κλιμακώσει τον ήχο σε ένα μουσικό όργανο μεταβάλοντας την ένταση τον χρονισμό και τον τόνο του. Οι τρεις βασικές παραμέτροι της περιοδικής κυματομορφής είναι το πλάτος («ενταση»), η φάση («χρονισμός») και η συχνότητά της («τόνος»),που μπορούν να αλλάξουν από ένα σήμα αποτελούμενο από χαμηλές συχνότητες ώστε να προκύψει το διαμορφωμένο σήμα. Η υψηλής συχνότητας διαμορφωμένη κυματομορφή χρησιμοποιείται ως μεταφορέας του αρχικού σήματος. Στις τηλεπικοινωνίες διαμόρφωση ονομάζεται η διαδικασία μεταβολής ενός περιοδικού σήματος, συνήθως υψίσυχνου, με στόχο την κωδικοποίηση σε αυτό ενός σήματος χαμηλής συχνότητας το οποίο μεταφέρει κωδικοποιημένη πληροφορία. Το υψίσυχνο σήμα τότε καλείται φέρον και συνήθως είναι σήμα απλής συχνότητα (π.χ. μία ημιτονοειδής κυματομορφή). Η διαμόρφωση απαιτείται για να μπορέσει να διέλθει ένα σήμα από κάποιο τηλεπικοινωνιακό κανάλι (ένα καλώδιο, στις ενσύρματες επικοινωνίες, ή ο ελεύθερος χώρος, στις ασύρματες επικοινωνίες) το εύρος ζώνης του οποίου δεν επικαλύπτεται με το εύρος ζώνης του σήματος. Διαμορφωτής ονομάζεται η συσκευή η οποία δέχεται σαν είσοδο μια ακολουθία δυαδικών ψηφίων και την μετατρέπει σε κυματομορφή (αναλογική η ψηφιακή) κατάλληλη για μετάδοση. Στο άλλο άκρο της επικοινωνίας, στον παραλήπτη, λαμβάνει χώρα η ανάστροφη διαδικασία προκειμένου να ανακτηθεί το αρχικό σήμα, η αποδιαμόρφωση με την ανάλογη συσκευή, τον αποδιαμορφωτή. Μία συσκευή η οποία μπορεί να επιτελεί και τις δύο διεργασίες, έτσι ώστε να λειτουργεί και ως αποστολέας και ως παραλήπτης, ονομάζεται μόντεμ (modem, εκ των αγγλικών λέξεων Modulator-Demodulator). Modulazioa seinale baten aldaketa sistematikoa da. Seinale hau eramailea da, eta beste seinale baten ezaugarrien arabera aldatzen da. Beste seinale hau modulatzailea da, eta informazioa dauka. Modulazioan lortzen den seinalea transmititzeko egokiagoa izatea da prozesu honen helburua. Modulazioa osatzen duten seinaleen izaeraren arabera sailka daitezke, bai seinale eramailea bai modulatzailea. Beraz, modulazioa analogikoa edo digitala izango da seinale modulatzailearen izaeraren arabera. Era berean, modulazioa analogikoa edo digitala eramaile analogikoa edo digitalarekin seinale eramailearen izaeraren arabera. Aipagarria da bereziki modulazio digitala eramaile analogikoarekin, informazio digitala telefono sare analogikotik bidaltzea ahalbidetzen duen metodoa, alegia. Модуля́ция (лат. modulatio — размеренность, ритмичность) — процесс изменения одного или нескольких параметров модулируемого несущего сигнала при помощи модулирующего сигнала. Передаваемая информация заложена в модулирующем сигнале, а роль переносчика информации выполняет высокочастотное колебание, называемое несущим (модулируемым). Модуляция, таким образом, представляет собой процесс «посадки» информационного колебания на заведомо известную несущую с целью получения нового модулированного сигнала. В результате модуляции спектр низкочастотного управляющего сигнала переносится в область высоких частот. Это позволяет при организации вещания настроить функционирование всех приёмо-передающих устройств на разных частотах с тем, чтобы они «не мешали» друг другу. В качестве несущего могут быть использованы колебания различной формы (прямоугольные, треугольные и т. д.), однако чаще всего применяются гармонические колебания. В зависимости от того, какой из параметров несущего колебания изменяется, различают вид модуляции (амплитудная, частотная, фазовая и др.). Модуляция дискретным сигналом называется цифровой модуляцией или манипуляцией. Modulación engloba el conjunto de técnicas que se usan para transportar información sobre una onda portadora, típicamente una onda sinusoidal. Estas técnicas permiten un mejor aprovechamiento del canal de comunicación lo que posibilita transmitir más información de forma simultánea además de mejorar la resistencia contra posibles ruidos e interferencias. Según la American National Standard for Telecommunications, la modulación es el proceso, o el resultado del proceso, de variar una característica de una onda portadora de acuerdo con una señal que transporta información. El propósito de la modulación es sobreponer señales en las ondas portadoras. Básicamente, la modulación consiste en hacer que un parámetro de la onda portadora cambie de valor de acuerdo con las variaciones de la señal moduladora, que es la información que queremos transmitir. Un modulador es un dispositivo o circuito que realiza la modulación. Un demodulador (a veces ) es un circuito que realiza demodulación, el inverso de la modulación. Un módem (de modulador–demodulador), utilizado en la comunicación bidireccional, puede realizar ambas operaciones. La banda de frecuencia ocupada por la señal de modulación se denomina banda base, mientras que la banda de frecuencia más alta ocupada por la portadora modulada se denomina banda de paso. En la modulación analógica se imprime una señal de modulación analógica en la portadora. Los ejemplos son modulación de amplitud (AM) en la que la amplitud (fuerza) de la onda portadora varía según la señal de modulación, y modulación de frecuencia (FM) en la que la frecuencia de la onda portadora es variada por la señal de modulación. Estos fueron los primeros tipos de modulación y se utilizan para transmitir una señal de audio que representa el sonido, radiodifusión en AM y FM. Los sistemas más recientes utilizan modulación digital, que imprime una señal digital que consiste en una secuencia de dígitos binarios (bits), un , en la portadora, mediante medios de mapeo de bits a elementos de un alfabeto discreto para ser transmitidos. Este alfabeto puede consistir en un conjunto de números reales o complejos, o secuencias, como oscilaciones de diferentes frecuencias, la llamada modulación (FSK). Un método de modulación digital más complicado que emplea múltiples portadoras, la (OFDM), se utiliza en redes WiFi, emisora de radio digital y transmisión de televisión por cable digital. La modulazione, in telecomunicazioni ed elettronica, indica l'insieme delle tecniche di trasmissione finalizzate ad imprimere un segnale elettrico o elettromagnetico, detto modulante, generalmente contenente informazione cioè variabile in maniera aleatoria nel tempo, su un altro segnale elettrico o elettromagnetico, detto portante, sviluppato ad alta frequenza (frequenza portante >> frequenza modulante). Il risultato della modulazione è la conversione del segnale modulante dalla banda base alla cosiddetta banda traslata (segnale modulato), secondo il teorema della modulazione. L'operazione inversa di ripristino del segnale informativo originario in banda base è detta demodulazione. Il dispositivo in trasmissione che attua l'operazione di modulazione sul segnale informativo è detto modulatore, mentre il dispositivo in ricezione che attua l'operazione di demodulazione è detto demodulatore, compresi rispettivamente nel trasmettitore e nel ricevitore. In un sistema di ricetrasmissione tali sistemi vengono riuniti entrambi sotto la dizione Modem (dalla composizione di MOdulazione e DEModulazione). I segnali modulanti possono rappresentare le informazioni più diverse: audio, video, dati. L'onda portante è un'onda elettromagnetica o un segnale elettrico a frequenza ben determinata (molto maggiore della frequenza del segnale modulante), che può essere trasmessa in aria o nel vuoto (ad es. nelle radiocomunicazioni), o tramite altro mezzo fisico (ad es. un cavo elettrico). In caso di comunicazioni in fibra ottica la portante è la radiazione laser la cui frequenza è tipicamente espressa come lunghezza d'onda. Modulatie is het combineren van een laagfrequent informatiesignaal met een draaggolf met een hogere frequentie, zodat een signaal ontstaat met een frequentieband rondom de frequentie van de draaggolf. Stel dat een radio- of televisiesignaal direct zonder draaggolf draadloos wordt uitgezonden. Het audiosignaal dat door een microfoon wordt opgewekt, en frequenties onder 20 kHz bevat, zou dus dan met die frequenties worden uitgezonden. Er zou dan maar één zender tegelijk in bedrijf kunnen zijn, maar het grootste probleem is dat dergelijke frequenties zich niet goed voortplanten door de atmosfeer. Dit probleem wordt opgelost door het bronsignaal met een draaggolf met een veel hogere frequentie over te brengen. Met een modulator wordt het signaal gesuperponeerd op een sinusvormige draaggolf, waaruit later door demodulatie het oorspronkelijke signaal weer kan worden teruggewonnen. Door gebruikmaking van draaggolven van verschillende frequenties kunnen verschillende zenders uitzenden zonder elkaar te storen en worden ze door de van de ontvanger uit elkaar gehouden. Door een hoogfrequente draaggolf te gebruiken krijgt het signaal de transmissiekwaliteiten om draadloos te worden uitgezonden, maar uiteraard kan het nog steeds door een draad- of glasvezelverbinding worden getransporteerd zoals bij kabeltelevisie. Модуля́ція (англ. modulation) — процес зміни в часі за заданим законом показників (характеристик) якогось з регуляторних фізичних процесів. Прикладне значення має модуляція коливань — накладання низькочастотного інформаційного сигналу на високочастотний сигнал-носій для передавання даних на великі відстані. Модуляція радіосигналу — процес зміни одного або кількох параметрів високочастотного модульованого коливання за законом низькочастотного інформаційного сигналу. En télécommunications, le signal transportant une information doit passer par un moyen de transmission entre un émetteur et un récepteur. Le signal est rarement adapté à la transmission directe par le canal de communication choisi, hertzien, filaire, ou optique. La modulation peut être définie comme le processus par lequel le signal est transformé de sa forme originale en une forme adaptée au canal de transmission, par exemple en faisant varier les paramètres d'amplitude et d'argument (phase/fréquence) d'une onde sinusoïdale appelée porteuse.Le dispositif qui effectue cette modulation, en général électronique, est un modulateur (voir modem).L'opération inverse permettant d'extraire le signal de la porteuse est la démodulation. Cette page permet de classifier les divers types de modulation, objets d'articles détaillés disponibles, en résumant leurs usages et principes. في الإلكترونيات والاتصالات، التضمين (بالإنجليزية: Modulation)‏ عملية تركيب لموجتين كهربائيتين أحدهما الموجة الحاملة وتكون ذات تردد عالي، والموجة المحمولة ذات تردد منخفض. مثال على ذلك البث في الراديو: ترسل محطة الإذاعة صوت المذيع كموجة ذات تردد منخفض راكبة على موجة كهرومغناطيسية ذات تردد عالي. ويستقبلهما جهاز الراديو وبه دوائر إلكترونية خاصة تفك الموجتين عن بعضهما البعض، وتكبر الموجة المحمولة كهربائيا وتوصلها بمكبر الصوت فنسمع المذيع من جهاز الراديو. التضمين أو التراكب يتم بين الموجة الحاملة (ذات تردد عالي) ، وموجة «محمولة» يقال لها الإشارة المعدِّلة وهي تحمل المعلومات المراد نقلها. فك التضمين) هي العملية العكسية حيث تستخراج الإشارة المعدلة من الموجة الحاملة. الجهاز الملائم لذلك يدعى مُزيل التضمين. الجهاز الذي يصلح للتضمين ولإزالة التضمين يقال له «المودِم». تعتبر عملية تضمين الإشارة من أهم العمليات في لقدرتها على استيعاب ترددات عالية جدا. وتستعمل تقنية التضمين في عدة أنظمة مثل الجي أس أم، البلوتوث، التلفزيون، الراديو الجي بي أس وغيرها من الأنظمة. In electronics and telecommunications, modulation is the process of varying one or more properties of a periodic waveform, called the carrier signal, with a separate signal called the modulation signal that typically contains information to be transmitted. For example, the modulation signal might be an audio signal representing sound from a microphone, a video signal representing moving images from a video camera, or a digital signal representing a sequence of binary digits, a bitstream from a computer. The carrier is higher in frequency than the modulation signal. In radio communication the modulated carrier is transmitted through space as a radio wave to a radio receiver. Another purpose is to transmit multiple channels of information through a single communication medium, using frequency-division multiplexing (FDM). For example in cable television which uses FDM, many carrier signals, each modulated with a different television channel, are transported through a single cable to customers. Since each carrier occupies a different frequency, the channels do not interfere with each other. At the destination end, the carrier signal is demodulated to extract the information bearing modulation signal. A modulator is a device or circuit that performs modulation. A demodulator (sometimes detector) is a circuit that performs demodulation, the inverse of modulation. A modem (from modulator–demodulator), used in bidirectional communication, can perform both operations. The frequency band occupied by the modulation signal is called the baseband, while the higher frequency band occupied by the modulated carrier is called the passband. In analog modulation an analog modulation signal is impressed on the carrier. Examples are amplitude modulation (AM) in which the amplitude (strength) of the carrier wave is varied by the modulation signal, and frequency modulation (FM) in which the frequency of the carrier wave is varied by the modulation signal. These were the earliest types of modulation, and are used to transmit an audio signal representing sound, in AM and FM radio broadcasting. More recent systems use digital modulation, which impresses a digital signal consisting of a sequence of binary digits (bits), a bitstream, on the carrier, by means of mapping bits to elements from a discrete alphabet to be transmitted. This alphabet can consist of a set of real or complex numbers, or sequences, like oscillations of different frequencies, so-called frequency-shift keying (FSK) modulation. A more complicated digital modulation method that employs multiple carriers, orthogonal frequency-division multiplexing (OFDM), is used in WiFi networks, digital radio stations and digital cable television transmission. ( 다른 뜻에 대해서는 변조 (동음이의) 문서를 참고하십시오.) 변조(變調)는 정보를 저장, 전송하기 위해 전기적 신호로 변환하는 것을 말한다. 보다 정확히는 원하는 정보에 따라 반송파(carrier) 신호의 진폭, 주파수, 위상 정보를 변경하여 변조된 신호를 얻는다. 신호를 전송하기 전에 변조하는 것은 여러 가지 이유가 있다. 그 중에는 하나의 전송 매체를 여러 사용자가 공유하도록 하는 것과 (다중 접속), 신호의 특성을 전송 매체의 물리적인 특성에 맞추기 위해서이다. 변조를 수행하는 장치를 변조기(modulator)라고 하며 이 반대의 과정을 수행하는 장치를 복조기(demodulator)라고 한다. 변조기와 복조기의 기능을 둘 다 수행하는 장치는 모뎀(MODEM)이라고 한다. 변조는 일반적으로 신호의 전송에 따른 문제점을 극복하여 다음과 같은 특성을 가지도록 한다: * 전자기파의 손쉬운 전달 (저손실, 저분산) * 다중화 - 여러 데이터 신호를 각각 다른 반송파 주파수에 실어 하나의 주파수 대역을 통해 전송 * 더 작고 지향적인 안테나의 사용 En telekomunikado, modulado (de la latina modulatio = takto, ritmo) estas informteknika procedo, ĉe kiu transsendota utila signalo (ekzemple muziko, lingvo, datumoj) modifas (modulas) portantan signalon. Per ĉi tio altfrekvenca transsendado de malaltfrekvenca utila signalo estas ebligita. La transsendata signalo okupas en la skalo de la portanta frekvenco bendlarĝon dependan de la utila signalo. La informo estas regajnata flanke de la ricevanto per malmodulilo. La portanta signalo mem estas sensignifa pri la transsendata informo. La portanta signalo estas necesa nur por la adaptado al la fizikaj ecoj de la transsendkanalo kaj povas esti subpremata okaze de certaj moduladmetodoj. Tamen la portanta signalo devas plenumi certajn kondiĉojn, antaŭ ĉio havi pli altan frekvencon ol la plej alta frekvenco ekzistanta en la utila signalo. Estas analogaj kaj ciferecaj moduladmetodoj. Analogaj moduladmetodoj (ekzemple uzataj en la analoga radiofonio per longondo, mezondo kaj ultramallongondo) prilaboras la utilan signalon kontinue (ne okazas ĝia ciferecigo). Ciferecaj moduladmetodoj (ekzemple uzataj en Digital Radio Mondiale kaj Digital Audio Broadcasting) transsendas simbolojn klare difinitajn por la sendilo kaj ricevilo kaj tial postulas ciferecigon de la transsendota utila signalo. Ekzemploj de analogaj moduladmetodoj estas amplitudmodulado (AM), frekvencmodulado (FM) kaj fazmodulado (siglo: PM, pro la angla termino Phase Modulation). Okaze de analoga amplitudmodulado, la amplitudo de la altfrekvenca portanta signalo estas modifata depende la utila signalo. Okaze de analoga frekvencmodulado, la frekvenco de la altfrekvenca portanta signalo estas modifata depende la utila signalo. Okaze de analoga fazmodulado (metodo malofte uzata pri transmisio de radioondoj, sed uzata en certaj sinteziloj), la fazo de la altfrekvenca portanta signalo estas modifata depende la utila signalo. Modulação é o processo de variação de altura (amplitude), de intensidade, frequência, do comprimento e/ou da fase de onda numa onda de transporte, que deforma uma das características de um sinal portador (amplitude, fase ou frequência) que varia proporcionalmente ao sinal modulador. Modulasi adalah proses perubahan (varying) suatu gelombang periodik sehingga menjadikan suatu sinyal mampu membawa suatu informasi. Dengan proses modulasi, ekuensi tinggi. Terdapat tiga parameter kunci pada suatu gelombang sinusiuodal yaitu: amplitudo, fase dan frekuensi. Ketiga parameter tersebut dapat dimodifikasi sesuai dengan sinyal informasi (berfrekuensi rendah) untuk membentuk sinyal yang termodulasi. Peralatan untuk melaksanakan proses modulasi disebut modulator, sedangkan peralatan untuk memperoleh informasi informasi awal (kebalikan dari dari proses modulasi) disebut demodulator dan peralatan yang melaksanakan kedua proses tersebut disebut modem. Informasi yang dikirim bisa berupa data analog maupun digital sehingga terdapat dua jenis modulasi yaitu * modulasi analog * modulasi digital Sinyal analog adalah sinyal data dalam bentuk gelombang yang kontinu, yang membawa informasi dengan mengubah karakteristik gelombangnya.Sinyal analog bekerja dengan mentransmisikan suara dan gambar dalam bentuk gelombang kontinu (continous varying).Dua parameter/karakteristik terpenting yang dimiliki oleh isyarat analog adalah amplitude dan frekuensi.Isyarat analog biasanya dinyatakan dengan gelombang sinus, mengingat gelombang sinus merupakan dasar untuk semua bentuk isyarat analog.Hal ini didasarkan kenyataan bahwa berdasarkan analisis fourier, suatu sinyal analog dapat diperoleh dari perpaduan sejumlah gelombang sinus.Dengan menggunakan sinyal analog, maka jangkauan transmisi data dapat mencapai jarak yang jauh, tetapi sinyal ini mudah terpengaruh oleh noise. Gelombang pada sinyal analog yang umumnya berbentuk gelombang sinus memiliki tiga variable dasar, yaitu amplitudo, frekuensi dan phase. * Amplitudo merupakan ukuran tinggi rendahnya tegangan dari sinyal analog. * Frekuensi adalah jumlah gelombang sinyal analog dalam satuan detik. * Phase adalah besar sudut dari sinyal analog pada saat tertentu. Sinyal digital merupakan hasil teknologi yang dapat mengubah signal menjadi kombinasi urutan bilangan 0 dan 1 (disebut juga dengan biner), sehingga tidak mudah terpengaruh oleh derau, proses informasinya pun mudah, cepat dan akurat, tetapi transmisi dengan sinyal digital hanya mencapai jarak jangkau pengiriman data yang relatif dekat. Biasanya sinyal ini juga dikenal dengan sinyal diskret. Sinyal yang mempunyai dua keadaan ini biasa disebut dengan bit. Bit merupakan istilah khas pada sinyal digital. Sebuah bit dapat berupa nol (0) atau satu (1). Kemungkinan nilai untuk sebuah bit adalah 2 buah (2^1). Kemungkinan nilai untuk 2 bit adalah sebanyak 4 (2^2), berupa 00, 01, 10, dan 11. Secara umum, jumlah kemungkinan nilai yang terbentuk oleh kombinasi n bit adalah sebesar 2^n buah. System digital merupakan bentuk sampling dari sistem analog. digital pada dasarnya di encode ke dalam bentuk biner atau hexadesimal. besarnya nilai suatu system digital dibatasi oleh lebarnya / jumlah bit (bandwidth). jumlah bit juga sangat mempengaruhi nilai akurasi sistem digital. Signal digital ini memiliki berbagai keistimewaan yang unik yang tidak dapat ditemukan pada teknologi analog yaitu: * Mampu mengirimkan informasi dengan kecepatan cahaya yang dapat membuat informasi dapat dikirim dengan kecepatan tinggi. * Penggunaan yang berulang – ulang terhadap informasi tidak mempengaruhi kualitas dan kuantitas informsi itu sendiri. * Informasi dapat dengan mudah diproses dan dimodifikasi ke dalam berbagai bentuk. * Dapat memproses informasi dalam jumlah yang sangat besar dan mengirimnya secara interaktif.(wikipedia) Pengolahan sinyal digital memerlukan komponen-komponen digital, register, counter, decoder, mikroprosessor, mikrokontroler dan sebagainya. Saat ini pengolahan sinyal banyak dilakukan secara digital, karena kelebihannya antara lain: 1. untuk menyimpan hasil pengolahan, sinyal digital lebih mudah dibandingkan sinyal analog. Untuk menyimpan sinyal digital dapat menggunakan media digital seperti CD, DVD, Flash Disk, Hardisk. Sedangkan media penyimpanan sinyal analog adalah pita tape magnetik. 2. lebih kebal terhadap noise karena bekerja pada level ’0′ dan ’1′. 3. lebih kebal terhadap perubahan temperatur. 4. lebih mudah pemrosesannya. 変調方式（へんちょうほうしき、英: modulation method）とは、電気通信において、基本信号（搬送波）に対して、その振幅、周波数、位相などを変化させる（変調する）ことにより信号を伝送する方式である。 Modulace je nelineární proces, kterým se mění charakter vhodného nosného signálu pomocí modulujícího signálu. Modulace se velmi často používá při přenosu nebo záznamu elektrických nebo optických signálů. Nejběžnějšími příklady zařízení spotřební elektroniky využívajících modulaci jsou například rozhlasový a televizní přijímač, mobilní telefon, různé typy modemů, satelitní přijímače atd. Většina zdrojů zpráv generuje signály, které ve své původní podobě nejsou vhodné pro dálkový přenos. Proto vznikla modulace, která posílí signál (nesenou informaci), lze ho tak přenášet na delší vzdálenost. Zařízení, které provádí modulaci, se nazývá modulátor. Musí vždy obsahovat nějaký nelineární prvek, jinak nemůže k modulaci dojít. Platí to ale i naopak. Jakmile se jakékoliv dva signály setkají na nějakém nelineárním prvku nebo v nelineárně se chovajícím prostředí, dojde k jejich vzájemné modulaci, tzv. .Opakem modulace je demodulace, kterou provádí demodulátor. Der Begriff Modulation (lat. modulatio = Takt, Rhythmus) beschreibt einen Vorgang in der Nachrichtentechnik, bei dem ein zu übertragendes Nutzsignal (beispielsweise Musik, Sprache, Daten) einen sogenannten Träger verändert (moduliert). Dadurch wird eine hochfrequente Übertragung des niederfrequenten Nutzsignals ermöglicht. Das Sendesignal belegt im Bereich der Trägerfrequenz eine vom Nutzsignal abhängige Bandbreite. Die Nachricht wird empfangsseitig durch einen Demodulator wieder zurückgewonnen. Das Trägersignal selbst ist bezüglich der übertragenen Nachricht ohne Bedeutung; es dient nur zur Anpassung an die physikalischen Eigenschaften des Übertragungskanals und kann (bei bestimmten Modulationsarten) unterdrückt werden. Sa bhfisic, tugtar modhnú ar chur i bhfeidhm athruithe rialta ar chúlra éigin, léas cáithníní nó radaíocht de ghnáth, go minic chun eolas a iompar trí mheán an léis. Úsáidtear comhartha tarchurtha chun léas leictreon taobh istigh de theilifíseán a mhodhnú chun an pictiúr a atáirgeadh. Tá criostail is leachtanna ann ar féidir a úsáid, agus réimsí leictreacha i bhfeidhm orthu, chun léis solais a mhodhnú.
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Subject Item: dbr:Orthogonal_frequency-division_multiplexing
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Subject Item: dbr:Digital_television_transition_in_the_United_States
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Subject Item: dbr:Auditory_integration_training
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Subject Item: dbr:Australian_Square_Kilometre_Array_Pathfinder
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Subject Item: dbr:Automatic_Transmitter_Identification_System_(television)
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Subject Item: dbr:Automatic_identification_system
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Subject Item: dbr:BK_channel
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Subject Item: dbr:Borg
dbo:wikiPageWikiLink: dbr:Modulation

Subject Item: dbr:Bytków_TV_Tower
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Subject Item: dbr:CDMA_spectral_efficiency
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Subject Item: dbr:CableCARD
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Subject Item: dbr:Cable_modem
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Subject Item: dbr:Photon_etc.
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Subject Item: dbr:Please_Mr._Postman
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Subject Item: dbr:Softmodem
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Subject Item: dbr:Solar_and_Heliospheric_Observatory
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Subject Item: dbr:Sound_effect
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Subject Item: dbr:Soviet_integrated_circuit_designation
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Subject Item: dbr:Spark-gap_transmitter
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Subject Item: dbr:Fiber-optic_sensor
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Subject Item: dbr:Free-space_optical_communication
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Subject Item: dbr:Frequency-division_multiplexing
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Subject Item: dbr:Frequency-shift_keying
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Subject Item: dbr:Frequency_drift
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Subject Item: dbr:Frequency_mixer
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Subject Item: dbr:Frequency_modulation
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Subject Item: dbr:Frequency_plan
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Subject Item: dbr:Container_format_(disambiguation)
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Subject Item: dbr:Ground_segment
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Subject Item: dbr:Group_delay_and_phase_delay
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Subject Item: dbr:Pulse_Modulation
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Subject Item: dbr:Pulse_modulation
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Subject Item: dbr:Pulse_modulation_methods
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Subject Item: dbr:Pulse_modulator
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Subject Item: dbr:Pulse_time_modulation
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Subject Item: dbr:IEBus
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Subject Item: dbr:IEEE_802.11
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Subject Item: dbr:IEEE_802.15.4
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Subject Item: dbr:In_Concerto_-_Arrangiamenti_PFM
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Subject Item: dbr:Kozłowiec_Transmitter
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Subject Item: dbr:Neutrino
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Subject Item: dbr:New_Amerykah_Part_One_(4th_World_War)
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Subject Item: dbr:New_Guinea_singing_dog
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Subject Item: dbr:Optical_fiber
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Subject Item: dbr:Carrier-to-noise_ratio
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Subject Item: dbr:Carrier_wave
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Subject Item: dbr:Cascode
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Subject Item: dbr:Cassette_tape
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Subject Item: dbr:RF_modulator
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Subject Item: dbr:RTCN_Suwałki_(Krzemianucha)
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Subject Item: dbr:RTHK
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Subject Item: dbr:Rachocin_Transmitter
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Subject Item: dbr:Radio_Guangdong
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Subject Item: dbr:Radio_broadcasting
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Subject Item: dbr:Radioactive_decay
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Subject Item: dbr:Channel_access_method
dbo:wikiPageWikiLink: dbr:Modulation

Subject Item: dbr:Kitzbüheler_Horn_Transmitter
dbo:wikiPageWikiLink: dbr:Modulation

Subject Item: dbr:Optical_heterodyne_detection
dbo:wikiPageWikiLink: dbr:Modulation

Subject Item: dbr:Saturn_V_instrument_unit
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Subject Item: dbr:Train_horn
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Subject Item: dbr:MCM
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Subject Item: dbr:MPX_filter
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Subject Item: dbr:Manuel_Machado_(composer)
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Subject Item: dbr:Measurement_while_drilling
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Subject Item: dbr:Modulating_retro-reflector
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Subject Item: dbr:Multiplexing
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Subject Item: dbr:NI_Massive
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Subject Item: dbr:Oberheim_Matrix_synthesizers
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Subject Item: dbr:Shadow_mask
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Subject Item: dbr:Spectral_mask
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Subject Item: dbr:Sideband
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Subject Item: dbr:Software-defined_radio
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Subject Item: dbr:Spatial_light_modulator
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Subject Item: dbr:Scrambler
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Subject Item: dbr:Shortwave_radio
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Subject Item: dbr:Slicer_(guitar_effect)
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Subject Item: dbr:Mercury-arc_valve
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Subject Item: dbr:Minimoog_Voyager
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Subject Item: dbr:Voicing_(music)
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Subject Item: dbr:Wavelength
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Subject Item: dbr:White_light_interferometry
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Subject Item: dbr:Wireless_telegraphy
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Subject Item: dbr:World_System_Teletext
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Subject Item: dbr:Near-field_electromagnetic_ranging
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Subject Item: dbr:Self-clocking_signal
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Subject Item: dbr:Ultra-wideband
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Subject Item: dbr:Signal_analyzer
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Subject Item: dbr:X-ray_astronomy_detector
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Subject Item: dbr:Extended_X-ray_absorption_fine_structure
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Subject Item: dbr:FLEX_(protocol)
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Subject Item: dbr:FMX_(broadcasting)
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Subject Item: dbr:FM_Center
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Subject Item: dbr:FM_broadcast_band
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Subject Item: dbr:FM_broadcasting
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Subject Item: dbr:Facsimile_converter
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Subject Item: dbr:Gunn_diode
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Subject Item: dbr:Digital_Modem
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Subject Item: dbr:Digital_modulation
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Subject Item: dbr:Digital_modulation_method
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Subject Item: dbr:IEC_61334
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Subject Item: n65:IEC_18000-7
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Subject Item: dbr:ISO_11784_and_ISO_11785
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Subject Item: dbr:Low-frequency_oscillation
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Subject Item: dbr:Low-noise_block_downconverter
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Subject Item: dbr:Satellite_modem
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Subject Item: dbr:Photophone
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Subject Item: dbr:Polymoog
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Subject Item: dbr:Transmitter
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Subject Item: dbr:Raz_Yirmiya
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Subject Item: dbr:Turbo_equalizer
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Subject Item: dbr:Superheterodyne_receiver
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Subject Item: dbr:Plasmonic_lens
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Subject Item: dbr:Types_of_radio_emissions
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Subject Item: dbr:Waveform_shaping
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Subject Item: dbr:Synth1
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Subject Item: dbr:Eurosignal
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Subject Item: dbr:Evolution-Data_Optimized
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Subject Item: dbr:Mandrake_Memorial
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Subject Item: dbr:NO_CARRIER
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Subject Item: dbr:NRPN
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Subject Item: dbr:Nanosat_01
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Subject Item: dbr:Pulse_shaping
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Subject Item: dbr:Photonics
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Subject Item: dbr:Wavelet_modulation
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Subject Item: dbr:Yamaha_CS1x
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Subject Item: dbr:Symphonies_by_Pyotr_Ilyich_Tchaikovsky
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Subject Item: dbr:Vertical_handover
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Subject Item: dbr:Photoelectric_sensor
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Subject Item: dbr:Oberheim_OB-8
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Subject Item: dbr:Raised-cosine_filter
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Subject Item: dbr:Variable-frequency_oscillator
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Subject Item: dbr:Photoacoustic_spectroscopy
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Subject Item: dbr:Physical_layer
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Subject Item: dbr:Piano_roll
dbo:wikiPageWikiLink: dbr:Modulation

Subject Item: dbr:Signal_element
dbo:wikiPageWikiLink: dbr:Modulation

Subject Item: dbr:Sonata_No._6_in_E-flat_major_(J._C._F._Bach)
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Subject Item: dbr:Node-to-node_data_transfer
dbo:wikiPageWikiLink: dbr:Modulation

Subject Item: dbr:Nonlinear_Schrödinger_equation
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Subject Item: dbr:Nord_Lead
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dbp:leftControl: dbr:Modulation

Subject Item: dbr:Precapillary_resistance
gold:hypernym: dbr:Modulation

Subject Item: dbr:Shepherd's_whistle
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Subject Item: dbr:TC-PAM
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Subject Item: dbr:Video_modulation
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Subject Item: dbr:Outline_of_electrical_engineering
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Subject Item: dbr:Outline_of_telecommunication
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Subject Item: dbr:Overmodulation
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Subject Item: dbr:PRIME_(Power-line_communication)
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Subject Item: dbr:Pulsed_Accretion
gold:hypernym: dbr:Modulation

Subject Item: dbr:Spark_gap
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Subject Item: dbr:Roland_SH-101
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Subject Item: dbr:Random_pulse_width_modulation
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Subject Item: dbr:Talk_box
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Subject Item: dbr:Orthogonal_frequency-division_multiple_access
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Subject Item: dbr:Modulation_index
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Subject Item: dbr:Modulation_memory
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Subject Item: dbr:Translational_drift
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Subject Item: dbr:Volca_Keys
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Subject Item: dbr:Symbol_rate
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Subject Item: dbr:Television_transmitter
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Subject Item: dbr:Spatial_modulation
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Subject Item: dbr:Spectrum_(physical_sciences)
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Subject Item: dbr:Shift_keying
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Subject Item: dbr:Analog_modulation
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Subject Item: dbr:Mode_of_transmission
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Subject Item: dbr:Modulated
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Subject Item: dbr:Modulated_wave
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Subject Item: dbr:Modulating_signal
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Subject Item: dbr:Modulation_(communications)
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Subject Item: dbr:Modulator
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Subject Item: dbr:Demod
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Subject Item: dbr:Multi_Carrier_Modulation
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Subject Item: wikipedia-en:Modulation
foaf:primaryTopic: dbr:Modulation