包括最小二乘法、SVM、神经网络、1_k近邻法,使用高阶累积量对MPSK信号进行调制识别，分数阶傅里叶变换计算方面。- Including the least squares method, the SVM, neural networks, 1 _k neighbor method, Using high-order cumulants of MPSK signal modulation recognition, Fractional Fourier transform computing.