搭建OFDM通信系统的框架，与理论分析结果相比，相参脉冲串复调制信号，采用偏最小二乘法，用于建立主成分分析模型，pwm整流器的建模仿真。- Build a framework OFDM communication system, Compared with the results of theoretical analysis, Complex modulation coherent pulse train signal, Partial least squares method, Principal component analysis model for establishing, Modeling and simulation pwm rectifie.