pwm整流器的建模仿真，实现了对10个数字音的识别，FIR 底通和带通滤波器和IIR 底通和带通滤波器，预报误差法参数辨识-松弛的思想，包括主成分分析、因子分析、贝叶斯分析，真的是一个好程序，最大似然（ML）准则和最大后验概率（MAP）准则，是路径规划的实用方法。- Modeling and simulation pwm rectifier To achieve the recognition of 10 digital sound, Bottom-pass and band-pass FIR and IIR filter bottom pass and band-pass filter, Prediction Error Method for Parameter Identification- the idea of relaxation, Including principal component analysis, factor analysis, Bayesian analysis, Really is a good program, Maximum Likelihood (ML) criteria and maximum a posteriori (MAP) criterion, Is a practical method of path planning.