中文说明：对于初学者具有参考意义，包括脚本文件和函数文件形式，搭建OFDM通信系统的框架，pwm整流器的建模仿真，微分方程组数值解方法，匹配追踪和正交匹配追踪。
English Description：
Has the reference significance for beginners, including scripts and functions file form, build a framework for OFDM communication system, the modeling and Simulation of PWM rectifier, the differential equations of the numerical solution method, matching pursuit and orthogonal matching pursuit.