中文说明： 基于负熵最大的独立分量分析，可以得到很精确的幅值、频率、相位估计，经典的灰度共生矩阵纹理计算方法，用MATLAB实现动态聚类或迭代自组织数据分析，该函数用来计算任意函数的一阶偏导数(数值方法),基于互功率谱的时延估计。
English Description：
Independent component analysis based on maximum negentropy, one can obtain accurate amplitude, frequency and phase estimation and calculation method of gray level co-occurrence matrix texture classic, using MATLAB to realize dynamic clustering analysis or iterative self organizing data, this function is used to calculate the first order partial derivatives of a function (method), and time delay estimation based on cross power spectrum.