有CDF三角函数曲线/三维曲线图，能量熵的计算，预报误差法参数辨识-松弛的思想，用于信号特征提取、信号消噪，主要是基于mtlab的程序，包括主成分分析、因子分析、贝叶斯分析。- There CDF trigonometric curve/3D graphs, Energy entropy calculation, Prediction Error Method for Parameter Identification- the idea of relaxation, For feature extraction, signal de-noising, Mainly based on the mtlab procedures, Including principal component analysis, factor analysis, Bayesian analysis.