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 ?
To the most known PSK variations belong four-level QPSK and 8PSK techniques.
Application of forward correction (FEC) negatively effects the transmission using 8PSK and QPSK modulation types resulting in decrease of the transmission quality.
In this paper we consider coherent detection of BPSK and QPSK signals in [eta]-[mu] fading channel.
PM-QPSK can be represented as a standard wireless QPSK phase diagram but with the two polarization states superimposed in a 3-D fashion.
The coherent receiver, which mixes the signal with a local oscillator, preserves the necessary characteristics of the signal to allow QPSK decoding.
Bursts using robust modulation types such as BPSK and QPSK are required to be transmitted first, followed by less robust modulation types (16 and 64QAM).
Although QPSK EVM and symbol EVM are not required, they can be useful when designing and troubleshooting a W-CDMA transmitter.
The expressions for the PSD of classical BPSK, QPSK and OQPSK take the same familiar general form.
2 to 1024 kbps BPSK or 64 to 2048 kbps QPSK, with performance typically within 0.
The QAM approach is predominantly used in wireline transmission systems, while QPSK modulation is widely implemented in both wireline and wireless systems.
Full demodulation capabilities, including FM, PM, BPSK and QPSK, are all in one receiver.