phase modulation
noun Date: 1930 modulation of the phase of a radio carrier wave by voice or other signal

New Collegiate Dictionary. 2001.

Look at other dictionaries:

  • Phase modulation — (PM) is a form of modulation that represents information as variations in the instantaneous phase of a carrier wave.Unlike its more popular counterpart, frequency modulation (FM), PM is not very widely used. This is because it tends to require… …   Wikipedia

  • phase modulation — n. Radio variation in the phase of a carrier wave in accordance with some signal, as speech …   English World dictionary

  • Phase Modulation —   [engl.], Phasenmodulation …   Universal-Lexikon

  • phase modulation — fazės moduliavimas statusas T sritis automatika atitikmenys: angl. phase modulation vok. Phasenmodulation, f rus. фазовая модуляция, f pranc. modulation de phase, f …   Automatikos terminų žodynas

  • phase modulation — fazės moduliavimas statusas T sritis Standartizacija ir metrologija apibrėžtis Veiksmas, kuriuo pagal tam tikrą dėsnį keičiama nešlio fazė. atitikmenys: angl. phase modulation vok. Phasenmodulation, f rus. фазовая модуляция, f pranc. modulation… …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

  • phase modulation — fazės moduliavimas statusas T sritis fizika atitikmenys: angl. phase modulation vok. Phasenmodulation, f rus. фазовая модуляция, f pranc. modulation de phase, f …   Fizikos terminų žodynas

  • phase modulation — fazės moduliavimas statusas T sritis informatika apibrėžtis ↑Moduliavimas, kai signalas, priklausomai nuo jo amplitudės, keičia ↑nešlio fazę. Santrumpa FM. Jeigu signalas analoginis, tai nešlio fazė keičiama tolydžiai. Kai amplitudė teigiama – į… …   Enciklopedinis kompiuterijos žodynas

  • phase modulation — phase′ modula tion n. elo elo radio transmission in which the carrier wave is modulated by changing its phase to transmit the amplitude and pitch of the signal • Etymology: 1925–30 …   From formal English to slang

  • phase modulation — noun modulation of the phase of the carrier wave • Syn: ↑PM • Hypernyms: ↑modulation …   Useful english dictionary

  • phase modulation — noun A method of sending information by modifying (modulating) the difference in phase (fraction of a wave length) between a signal and a reference. See Also: phase modulator …   Wiktionary

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