amplitude-frequency modulation

См. также в других словарях:

• frequency modulation — n. 1. the variation of the frequency of a carrier wave in accordance with the signal being broadcast 2. a broadcasting system that uses this: Abbrev. FM: Cf. AMPLITUDE MODULATION …   English World dictionary

• 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 modulation synthesis — In audio and music frequency modulation synthesis (or FM synthesis) is a form of audio synthesis where the timbre of a simple waveform is changed by frequency modulating it with a modulating frequency that is also in the audio range, resulting in …   Wikipedia

• frequency modulation — /ˈfrikwənsi mɒdʒəˌleɪʃən/ (say freekwuhnsee mojuh.layshuhn) noun a broadcasting system, relatively free from static, in which the frequency of the transmitted wave is modulated or varied in accordance with the amplitude and pitch of the signal… …  

• frequency modulation — noun the use of a modulating wave to vary the instantaneous frequency of a carrier wave See Also: amplitude modulation, phase modulation, FM …   Wiktionary

• Frequency Modulation (FM) — A&V Modulation of a sine wave or carrier by varying its frequency in accordance with amplitude variations of the modulating signals …   Audio and video glossary

• Frequency Modulation — (FM) A term used to describe a type of radio frequency where the frequency of the wave changes rather than the amplitude. Also see AM/FM …   Dictionary of automotive terms

• frequency modulation —    (FM)    The technique of varying the frequency of a carrier wave in direct proportion to the strength of the input signal while maintaining a constant amplitude …   IT glossary of terms, acronyms and abbreviations

• pulse-frequency modulation — A signal is translated into a succession of constant amplitude pulses transmitted at a frequency proportional to the amplitude of the original signal. See pulse modulation …   Aviation dictionary

• Modulation De Fréquence — Un exemple de modulation de fréquence. En haut, le signal (en rouge) superposé avec la fréquence porteuse (en vert). En bas, le résultat du signal (en bleu) une fois modulé par la fréquence. La modulation de fréquence ou MF ou FM est un mode de… …   Wikipédia en Français

• Modulation de frequence — Modulation de fréquence Un exemple de modulation de fréquence. En haut, le signal (en rouge) superposé avec la fréquence porteuse (en vert). En bas, le résultat du signal (en bleu) une fois modulé par la fréquence. La modulation de fréquence ou… …   Wikipédia en Français