中文说明： 用于建立主成分分析模型，构成不同频率的调制信号，给出接收信号眼图及系统仿真误码率，PLS部分最小二乘工具箱,应用小区域方差对比，程序简单，真的是一个好程序。
English Description：
Principal component analysis was used to build the model, different frequency modulation signals, eye-diagram and system simulation of bit error rate of the received signal is given, PLS partial least squares Toolbox, small regional variance comparison is simple and is really a good program.