使用高阶累积量对MPSK信号进行调制识别，数学方法是部分子空间法，对于初学者具有参考意义，实现了对10个数字音的识别程序加入重复控制，使用混沌与分形分析的例程。-Using high-order cumulants of MPSK signal modulation recognition, Mathematics is part of the subspace, For beginners with a reference value, Realization of 10 digital audio recognition program Join repetitive control, Use Chaos and fractal analysis routines.