www.gusucode.com > ofdm结合2x2的m.. > ofdm结合2x2的m...构的WLAN环境数据传输仿真程序matlab版,包括信道估计和同步等模块/tx_add_pilot_syms.m
function mod_ofdm_syms = tx_add_pilot_syms(mod_syms, sim_options) global sim_consts; n_mod_syms = size(mod_syms,2); n_ofdm_syms = n_mod_syms/sim_consts.NumDataSubc; %pilot scrambling pattern scramble_patt = repmat(sim_consts.PilotScramble,1,ceil(n_ofdm_syms/length(sim_consts.PilotScramble))); scramble_patt = scramble_patt(1:n_ofdm_syms); mod_ofdm_syms = zeros(sim_consts.NumSubc, n_ofdm_syms); mod_ofdm_syms(sim_consts.DataSubcPatt,:) = reshape(mod_syms, sim_consts.NumDataSubc, n_ofdm_syms); mod_ofdm_syms(sim_consts.PilotSubcPatt,:) = repmat(scramble_patt, sim_consts.NumPilotSubc,1).* ... repmat(sim_consts.PilotSubcSymbols, 1, n_ofdm_syms); mod_ofdm_syms = mod_ofdm_syms(:).';