从先验概率中采样，计算权重，仿真效率很高的，预报误差法参数辨识-松弛的思想，pwm整流器的建模仿真，ICA（主分量分析）算法和程序，毕业设计有用，包含特征值与特征向量的提取、训练样本以及最后的识别，包含优化类的几个简单示例程序。- Sampling　a priori probability, calculate the weight, High simulation efficiency, Prediction Error Method for Parameter Identification- the idea of relaxation, Modeling and simulation pwm rectifier ICA (Principal Component Analysis) algorithm and procedures, Graduation useful Contains the eigenvalue and eigenvector extraction, the training sample, and the final recognition, Optimization class contains several simple sample programs.