使用蒙特卡罗方法模拟AWGN信道中QPSK的数字BER，并附加QPSK_AWGN.m脚本。 修改具有ZF接收机的系统中的瑞利平坦衰落信道的情况的代码。 在同一个图中绘制其数值和分析BER。(Use the Monte Carlo method to simulate the numerical BER of QPSK in AWGN channels, with the QPSK_AWGN.m scr ipt attached. Modify the code for the case o

瑞利信道下的QPSK误码率仿真，利用蒙特卡洛模型跟理论结果曲线对比(Rayleigh channel QPSK bit error rate simulation, the use of Monte Carlo model with the theoretical results curve comparison)

通信OFDM传输，信号通过加入导频，循环前缀，交织变换，经过瑞丽信道，通过QPSK解调，译码，判断误码率。(Communication OFDM transmission, the signal by adding pilots, cyclic prefix, interleaved transform, after Rayleigh channel, demodulated by QPSK, decoding, to determine the bit error rate.)