tx_freqd_to_timed.m

来自「此代码是ＬＤＰＣ码进行BP算法的重要参考代码」· M 代码 · 共 17 行

function time_syms = tx_freqd_to_timed(mod_ofdm_syms)

global sim_consts;

num_symbols = size(mod_ofdm_syms, 2)/sim_consts.NumSubc;

resample_patt=[33:64 1:32];

% Convert each antenna's signal to time domain
syms_into_ifft = zeros(64, num_symbols);
syms_into_ifft(sim_consts.UsedSubcIdx,:) = reshape(mod_ofdm_syms, sim_consts.NumSubc, num_symbols);
syms_into_ifft(resample_patt,:) = syms_into_ifft;

% Convert to time domain
ifft_out = ifft(syms_into_ifft);
time_syms = ifft_out(:).';