仿真OFDM传输系统，仿真不同的保护间隔的ISI影响，信道为AWGN或多径瑞利衰落信道。-Simulation OFDM transmission system, ISI impact simulation of different guard interval, the channel is AWGN or Rayleigh fading channels.

简单的OFDM仿真，采用QPSK调制，有串并转换，保护间隔，fft/ifft等-Simple OFDM simulation using QPSK modulation, there are serial to parallel conversion, guard interval, fft/ifft etc.