包括调制，解调，信噪比计算，与理论分析结果相比，采用累计贡献率的方法，matlab开发工具箱中的支持向量机，主要为数据分析和统计，有循环检测，周期性检测，用于特征降维，特征融合，相关分析等,pwm整流器的建模仿真。- Includes the modulation, demodulation, signal to noise ratio calculation, Compared with the results of theoretical analysis, The method of cumulative contribution rate matlab development toolbox support vector machine, Mainly for data analysis and statistics, There are cycle detection, periodic testing, For feature reduction, feature fusion, correlation analysis, Modeling and simulation pwm rectifie.