www.gusucode.com > LTE基带收发仿真系统matlab源码程序 > LTE baseband simulation/zf_detect.m
function xEst = zf_detect(r,H) % ZF vblast 接收机 带有干扰抵消 % 输入:r:接收到的信号 % H:频域信道矩阵 % SNRdB:SNR 单位dB % 输出:估计的符号 % Author: 程式小组(徐萌 张妙 张晓庆) % Date: 2010-07-11 % ========================================================== [nRx,nTx] = size(H); hSave = H; G=pinv(H); [gk k0]=min(sum(abs(G).^2,2)); w = zeros(nTx,nRx); k1 = zeros(nTx,1); xEst = zeros(nTx,1); for m=1:nTx k1(m)=k0; w(m,:)=G(k1(m),:); y=w(m,:)*r; xEst(k1(m),1)=y; r = r - xEst(k1(m)) * hSave(:, k1(m)); H(:,k0)=zeros(nRx,1); G=pinv(H); for t=1:m G(k1(t),:)=inf; end [gk k0]=min(sum(abs(G).^2,2)); end