rx_phase_tracker.m

MATLAB Simulation of OFDM System

function corrected_syms = rx_phase_tracker(freq_data_syms, freq_pilot_syms, channel_est, sim_options);

global sim_consts;

num_symbols = size(freq_data_syms,3);    %freq_data_syms是n_rx_antennas*48*n_data_syms
corrected_syms = zeros(sim_consts.NumDataSubc, num_symbols);

if sim_options.PilotPhaseTracking      
   %采用导引符号估计相位的改变
   correction_phases = rx_pilot_phase_est(freq_pilot_syms, channel_est, sim_options);
   
   % 纠正信号
   corrected_syms = exp(-j*correction_phases).*freq_data_syms;
else
   corrected_syms = freq_data_syms;
end

%keyboard