处理信号的时频分析，包含特征值与特征向量的提取、训练样本以及最后的识别，一个很有用的程序，信号处理中的旋转不变子空间法，构成不同频率的调制信号，迭代自组织数据分析，一种噪声辅助数据分析方法。- When processing a signal frequency analysis, Contains the eigenvalue and eigenvector extraction, the training sample, and the final recognition, A very useful program, Signal Processing ESPRIT method, Constituting the modulated signals of different frequencies, Iterative self-organizing data analysis, A noise auxiliary data analysis method.