zfdecode.m

程序是MIMO-OFDM系统下

function output=ZFdecode(Y,H,Cons)
len=size(H,2);
x=pinv(H)*Y;
% if len==2
%     for a1=1:1:4
%         for a2=1:1:4
%             X(:,(a1-1)*4+a2)=[Cons(a1);Cons(a2)];
%         end
%     end
%     y=repmat(x,1,16)-X;;
%     for k=1:1:16
%         M(k)=abs(y(1,k)).^2+abs(y(2,k)).^2;
%     end
%     output=X(:,find(M==min(M)));
% elseif len==1
%     for k=1:1:4
%         M(k)=(x-Cons(k))*conj(x-Cons(k));
%     end
%     output=Cons(find(M==min(M)));
% end
for i=1:1:len
    for k=1:1:4
        M(k)=(x(i)-Cons(k))*conj(x(i)-Cons(k));
    end
    output(i,:)=Cons(find(M==min(M)));   
end