qdpskmod.m

实现QPSK和BPSK的调制解调程序

function [iout,qout]=qdpskmod(iin,qin)
code_I_n1=0;
code_Q_n1=0;
for i=1:length(iin);
    Origin_I_n=iin(i);
    Origin_Q_n=qin(i);
    code_I_n=Origin_I_n&(~(code_I_n1))&(~(code_Q_n1))|Origin_Q_n&(~(code_I_n1))&code_Q_n1|(~(Origin_I_n))&code_I_n1&code_Q_n1|(~(Origin_Q_n))&code_I_n1&(~(code_Q_n1));
    code_Q_n=Origin_Q_n&(~(code_I_n1))&(~(code_Q_n1))|(~(Origin_I_n))&(not(code_I_n1))&code_Q_n1|(~(Origin_Q_n))&code_I_n1&code_Q_n1|Origin_I_n&code_I_n1&(~(code_Q_n1));
    code_I_n1=code_I_n;
    code_Q_n1=code_Q_n;
    iout(i)=code_I_n;
    qout(i)=code_Q_n;
end
iout=2*iout-1;
qout=2*qout-1;