该系统是OFDM系统仿真框图用simulink做的，并且可以计算出误码率，而且误码率很低-The system is OFDM system simulation using simulink block diagram to do, and can calculate the error rate, and low bit error rate

QPSK的误码率仿真和瑞利信道在AWGN下的仿真。-QPSK BER simulation and Rayleigh channel simulation in AWGN' s.