编写M函数的MATLAB仿真程序，实现M=2，4，8，16，32的M相PSK符号差错概率。,The preparation of M simulation program MATLAB function, M = 2,4,8,16,32 to achieve the M-phase PSK symbol error probability.

第3章 数据的预处理（此程序是用matlab编写的，此代码已经通过本人测试）-Chapter 3 pretreatment data (this procedure is used matlab, this code has passed my test)