In Figure 5-9 (b), we have used M = 4, giving four signal points and a system called quadruple phase shift keying (QPSK) or 4PSK . In Figure 5-9 (c) M = 8, i.e. the signal constellation 8PSK , etc.

Phase shift keying A method of communicating data by shifting the waveform’s period. Instead of being at the zero axis at a specific point in time, the wave might be shifted forward so that it is at ...

Phase Jitter Modulation A variant of phase-shift keying, created by Magellan Technology, which operates at 13.56 MHz and complies with the ISO/IEC 18000 3 Mode 2 standard. PJM technology enables a ...

A-BPSK aviation binary phase shift keying—a form of phase-shift keyed modulation with shaped filters especially adapted to perform in an RF environment subject to fading A-QPSK aeronautical ...