- discrete frequency modulation
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дискретная частотная модуляция
Англо-русский словарь технических терминов. 2005.
discrete frequency modulation
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Frequency modulation — See also: Amplitude modulation In telecommunications, frequency modulation (FM) conveys information over a carrier wave by varying its frequency (contrast this with amplitude modulation, in which the amplitude of the carrier is varied while its… … Wikipedia
Frequency-division multiplexing — (FDM) is a form of signal multiplexing where multiple baseband signals are modulated on different frequency carrier waves and added together to create a composite signal. Non telephoneFDM can also be used to combine multiple signals before final… … Wikipedia
Modulation — For musical change of key, see Modulation (music). For other uses, see Modulation (disambiguation). Passband modulation v · d · e … Wikipedia
Frequency-shift keying — Passband modulation v · d · e Analog modulation AM · … Wikipedia
Discrete-time Fourier transform — In mathematics, the discrete time Fourier transform (DTFT) is one of the specific forms of Fourier analysis. As such, it transforms one function into another, which is called the frequency domain representation, or simply the DTFT , of the… … Wikipedia
Frequency mixer — This article is about non linear mixing operating in the frequency domain. For other types of mixers, see electronic mixer. Frequency Mixer Symbol. In electronics a mixer or frequency mixer is a nonlinear electrical circuit that creates new… … Wikipedia
frequency-shift keying — noun A form of frequency modulation in which digital information is transmitted through discrete changes of the frequency of a carrier wave. Syn: FSK … Wiktionary
frequency shift keying — (FSK) Frequency modulation of a carrier by a modulating signal that varies between a fixed number of discrete values (a digital signal) … IT glossary of terms, acronyms and abbreviations
Modulation transfer function (infrared imaging) — The Modulation Transfer Function (MTF) is used to approximate the position of best focus of an infrared imaging system. In an imaging system, best focus is typically achieved when the MTF is between 0.4 and 0.6; most often at 0.5 (50% cutoff… … Wikipedia
Modulation (Technik) — Die Modulation (von lat. modulatio = Takt, Rhythmus) beschreibt in der Nachrichtentechnik einen Vorgang, bei dem ein zu übertragendes Nutzsignal (beispielsweise Musik, Sprache, Daten) eine sogenannte Trägerwelle verändert (moduliert). Dadurch… … Deutsch Wikipedia
Frequency Shift Keying — Bildung eines binären FSK Signals. Oben: Quelldaten als eine Folge von logisch 1 und logisch 0. Mitte: Unmodulierte Trägerfrequenz Unten: Moduliertes FSK Signal. Die Frequenzumtastung (englisch Frequency Shift Keying, FSK) ist eine… … Deutsch Wikipedia
