de_qam_64.m

Blind Equalizer 的演算法主要是利用CMA及 LMS 的配合

function qam=de_qam_64(x)
qam=zeros(1,length(x));
for k=1:length(x)
    temp=x(k);
    if  temp>6
        qam(k)=7;
    elseif temp<6 & temp>=4
        qam(k)=5;
    elseif temp<4 & temp>=2
        qam(k)=3;
    elseif temp<2 & temp>=0
        qam(k)=1;
    elseif temp<0 & temp>=-2
        qam(k)=-1;
    elseif temp<-2 & temp>=-4
        qam(k)=-3;
    elseif temp<-4 & temp>=-6
        qam(k)=-5;
    elseif temp<-6
        qam(k)=-7;
    end
end