phase-shift keying

(redirected from Biphase modulation)

phase-shift keying

[′fāz ¦shift ‚kē·iŋ]
(communications)
A form of phase modulation in which the modulating function shifts the instantaneous phase of the modulated wave between predetermined discrete values. Abbreviated PSK.
References in periodicals archive ?
In this study, the chaotic sequence is introduced into the MCPC pulse train so as to design the Chaos_NNS MCPC_I and Chaos_NNS MCPCJI pulse train signal based on chaotic biphase modulation. We compare the ambiguity function of the signal proposed in this paper with that of MCPC pulse train modulated by P4 code and analyze the influences of the subcarrier number, bit number, and period number on the autocorrelation performance of the two signals.
It consists of a very long sequence of pseudorandom binary biphase modulations on the GPS carrier at a chip rate of 10.23 MHz which repeats about every 267 days.