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 ?
In this experiment the MZM is used for the phase modulation, the pseudo random bit sequence of 2 Gbps is applied to the 16-QAM modulation and the phase modulated signal output will given to the amplitude and phase pre-coding circuit.
The single pump FOPA is represented by an optical combiner, a 1 km long high non-linearity fiber (HNLF) and a powerful CW phase modulated pump.
Fluorescence was measured using an ISS Phase Modulated Spectrofluorometer.