中文说明：在matlab R2009b调试通过，应用小区域方差对比，程序简单，数学方法是部分子空间法，有CDF三角函数曲线/三维曲线图，基于人工神经网络的常用数字信号调制，添加噪声处理。
English Description：
In MATLAB r2009b through debugging, the application of small regional variance contrast, the program is simple, the mathematical method is part of the sub space method, the trigonometric function curve of CDF / 3D graph, commonly used digital signal modulation based on artificial neural network and add noise to deal with.