用matlab仿真多种常见调制方式，PCM,FSK等，并添加干扰信号，通过对比误码率率得出最佳干扰样式(Using MATLAB to simulate a variety of common modulation modes, PCM, FSK and so on, and add interference signals. By comparing the bit error rate, the best interference

通信对抗实验第一部分答案，利用simulink完成QPSK调制和解调(The answer to the first part of the communication confrontation experimen)