Question

matlab简单的瑞利衰落AWGN信道仿真，求人帮忙看下哪里写错了，仿真误码率很高

chipLength = 1000;
Snr = -6:1:6;
errornum(1:length(Snr)) = 0;
for iSnr = 1:length(Snr)
signal = randi([0 1],1,chipLength);
rayl = 1/sqrt(1000)*(randn(1,chipLength) + j*randn(1,chipLength)); %生成瑞利信道
psksignal = pskmod(signal,2); %BPSK调制
rxsignal = awgn(psksignal.*rayl,Snr(iSnr)); %通过信道
depsksignal = pskdemod(rxsignal,2); %BPSK解调
errornum(iSnr) = errornum(iSnr) + sum(abs(depsksignal-signal));
ber(iSnr) = errornum(iSnr)/100;
end;
semilogy(Snr,ber)

Answer 1

已调信号缺少相移补偿

Answer 2

具体我也不知道，只是我看第六行有个单字符j，这个会不会有问题？