qpsk_mod.m

关于通信基本原理的仿真

function y=qpsk_mod(bits)

[row,col]=size(bits);
if(mod(row,2)~=0)
    input('The length of bits must even!');
    exit(1);
end
for ll=1:col
    symbols=1-2*bits;
    for k=1:row/2
        y(k,ll)=symbols(2*k-1,ll)+j*symbols(2*k,ll);
    end
end
%y=sqrt(1/2)*y;