使用高阶累积量对MPSK信号进行调制识别，最终的权值矩阵就是滤波器的系数，借鉴了主成分分析算法（PCA），研究生时的现代信号处理的作业，结合PCA的尺度不变特征变换(SIFT)算法，多姿态，多角度，有不同光照,实现了对10个数字音的识别程。- Using high-order cumulants of MPSK signal modulation recognition, The final weight matrix is ??the filter coefficient, It draws on principal component analysis algorithm (PCA), Modern signal processing jobs when the graduate, Combined with PCA scale invariant feature transform (SIFT) algorithm, Much posture, multi-angle, have different light, Realization of 10 digital audio recognition progra.