这个源程序代码包提供了通信系统中BPSK,QPSK调制解调方式 用matlab的实现，误码率性能-The source code package provides a communication system BPSK, QPSK modulation and demodulation method using matlab implementation, bit error rate performance

QPSK Modulation Demodulation, BER vs SNR plot

QPSK调制解调程序，COSTA环，学习通信编程的好代码-QPSK modulation and demodulation process, COSTA ring, learning good communication programming code