Phase-shift keying (PSK) is a modulation process whereby the input signal, a binary PCM waveform, shifts the phase of the output waveform to one of a fixed number of states. The demodulation process can be divided into three major subsections, as

Thus PSK systems require less transmitted power for a given probability of error than ASK or FSK systems. Synchronous detection of PSK signals is required,due to the absense of a large carrier component.Carrier recovery is there for emore compl

针对非协作通信条件下PSK 信号识别问题提出了一种基于星座图恢复的MPSK/MDPSK信号调制方式盲识别系统-A system for blind modulation recognition of MPSK/MDPSK signals based on constellation recovery is proposed for non-cooperative communication applications