npsk.m

4发射天线1接收天线BPSK调制下的正交空时编码

function npskdata=npsk(n,data)%nPSK调制子函数，n为调制参数，data为原始未调制数据
for i=1:n
    npsksignal(i)=exp(j*2*pi/n*(i-0.5));
end
inp=reshape(data,log2(n),length(data)/log2(n));
npskxishu=zeros(1,log2(n));
for i=1:log2(n)
    npskxishu(i)=2^(i-1);
end
npskdata=npsksignal(npskxishu*inp+1);