%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%  ZF BPSK
%  2*3系統(tǒng)
%  輸入?yún)?shù)：H 
%  輸出參數(shù)：
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
clc;
clear;

H=[0.5 0.25;
    0.125 0.5;
    0.25 0.125];

x=[1;1];
n=[0;0;0];

r=H*x+n;

G=pinv(H);
ZF = G*r;

QAM_input_I = real(ZF);
QAM_input_Q = imag(ZF);
output_frame = zeros(1,2);

BPSK_Demodu_I = [0 1];      %f(m)=(m+1)/2 + 1, so I=-1 ---> 1, I=1 ---> 2
idx = find(QAM_input_I>1);
QAM_input_I(idx) = 1;
idx = find(QAM_input_I<-1);
QAM_input_I(idx) = -1;

output_frame = BPSK_Demodu_I(round((QAM_input_I+1)/2) + 1)