数学方法是部分子空间法，仿真图是速度、距离、幅度三维图像，这个有中文注释，看得明白，pwm整流器的建模仿真，仿真效果非常好，有小波分析的盲信号处理。- Mathematics is part of the subspace, FIG simulation speed, distance, amplitude three-dimensional image, The Chinese have a comment, understand it, Modeling and simulation pwm