shape.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 18 行

function shaped_vals = shape(rec_symbol,Mr,U,N);
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%   通过用信道左矩阵过滤接收到的矢量
%   在解调之前完成这个过程
%   这个过程完成将信道分解成平行子信道
%
%   rec_symbol  接收经过IFFT的符号
%   Mr          接收天线数
%   U           子信道复用之前的矩阵
%   N           OFDM子载波数
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

shaped_vals = [];
for i =1:N
    shaped_vals =[shaped_vals;[U(:,(i-1)*Mr+1:i*Mr)]'*transpose(rec_symbol((i-1)*Mr+1:i*Mr))];
end

shaped_vals = transpose(shaped_vals);