4PSK误码仿真率，可帮助读者解决4PSK调制信号的误码率分析问题-Simulation 4PSK error rate, can help readers solve the modulation signal 4PSK BER analysis

MPSK误码仿真率，可帮助读者解决MPSK调制信号的误码率分析问题-Simulation of MPSK bit error rate, can help readers solve the MPSK modulated signals of bit error rate analysis

使用matlab对无线通信中重要的调制技术QPSK进行了仿真设计，包括调制，信道环境模拟，解调，最重要的是解决了无线通信中的载波同步问题，对频偏和相偏进行了估计，也实现了码元同步。-Use matlab important wireless communication QPSK modulation technique simulation design, including modulation, channel environment simulation, demodulation, th