用rayleighchan 函数仿真时要注意最后要做相位补偿（此问题是导师发现的）

程序步骤：

~产生随机序列

~产生瑞利信道

~调制

~记忆信道特征

~信号通过信道

~相位补偿

~加高斯噪声

~解调

~计算仿真误比特率

~计算理论误比特率

~不同颜色画出误比特率曲线对比-Function Simulation with rayleighchan last thing to note when the phase compensation (this issue is found mentor) program steps: ~ ~ generated random sequence modulation in Rayleigh Road, ~ ~ ~ memory characteristics of the signal channel by channel ~ ~ plus Gaussian noise phase compensation ~ ~ demodulation bit error rate calculation simulation of bit error rate calculation theory ~ ~ different colors to draw curves of bit error rate