信源产生、信道编码、调制、信道传输、解调、信道译码、差错比较等通信过程的Simulink仿真方法。分析几种调制方式（2FSK、2PSK、QPSK、16PSK、16QAM）在不同信噪比下的通信质量。-Generated source, channel coding, modulation, channel transmission, demodulation, channel decoding, error comparison of the communication process of th

基于simulink 框架的QPSK调制与解调-QPSK modulation and demodulation based on Simulink framework