svd_decompose_channel.m

来自「汪裕民的OFDM关键技术与应用中仿真MIMO-OFDM的源代码」· M 代码 · 共 20 行

function[U,S,V] = svd_decompose_channel(Mt,Mr,h_f,N);
% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% 将信道按奇异值分解
% Mt  发送天线数
% Mr  接收天线数
% h_f MIMO冲击响应 Mr行，Mt*L列，其中L是信道有效时间
% N   子载波数
% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

U = [];
S = [];
V = [];
for i = 1:N;
    [Utmp Stmp Vtmp] = svd(h_f(:,(i-1)*Mt+1:i*Mt));
    U = [U Utmp];
    V = [V Vtmp];
    S = [S Stmp];
end

S = sum(S,1);