phase modulation

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phase modulation

n. Abbr. pm or p-m
A method of signal transmission in which the phase of a carrier wave is varied to transmit information contained in the signal.

phase modulation

n
(Electronics) a type of modulation, used in communication systems, in which the phase of a radio carrier wave is varied by an amount proportional to the instantaneous amplitude of the modulating signal

phase′ modula`tion



n.
radio transmission in which the carrier wave is modulated by changing its phase to transmit the amplitude and pitch of the signal.
[1925–30]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.phase modulation - modulation of the phase of the carrier wave
modulation - (electronics) the transmission of a signal by using it to vary a carrier wave; changing the carrier's amplitude or frequency or phase
References in periodicals archive ?
Tenders invited for Electro-optic phase modulator with compatible rf driver for 87rb-repumping transition
In this section we present a brief description of the QPSK phase modulator transmitter and receiver and the CMA and Backpropagation electronic compensation techniques.
A method to generate a frequency doubling photonic 16-Quadrature Amplitude Modulation (16-QAM) is performed by using single phase modulator [19].
Belisle, "Optical generation and distribution of continuously tunable millimeterwave signals using an optical phase modulator," Journal of Lightwave Technology, Vol.
As shown in Figure 1(b) the input to the system is a chirp-free pulse that drives a phase modulator.
m2] injected into the phase modulator through the integrator yields the low pass modulated signal as
A traditional PLL prohibits the use of the synthesizer as a phase modulator and designers are forced to use IQ (in-phase and quadrature) up converters, which consume additional space and power.
Tender issueA fibre-based deep space optical data terminal incorporates a seed laser amplitude frequency and / or phase modulator optical amplifier and free-space beam forming optic.
Saleh, "Theory and design of the liquid crystal TV as an optical spatial phase modulator," Opt.
A Simplified Continuous Phase Modulator Technique," IEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing, Vol.
Tenders are invited for Supply Of Electro-Optic Phase Modulator With Driver, Source, Mount And Photodiode