www.gusucode.com > 基于VBLAST-OFDM的MATLAB SIMULATION，图形化界面，并且给出了各仿真图 > 基于VBLAST-OFDM的MATLAB SIMULATION，图形化界面，并且给出了各仿真图/vblast-ofdm simulation/rx_gen_chan_amps.m

    % Channel amplitudes corresponding to bits for Viterbi decoding

function channel_amps = rx_gen_chan_amps(data_len, channel_est, SimulationParameters)

global SimulationConstants;

bits_per_subc = get_bits_per_symbol(SimulationParameters.ModulationType);
amps_mat = repmat(sum(abs(channel_est).^2, 2)', bits_per_subc, 1);
amps_mat = amps_mat(:)';
amps_mat = repmat(amps_mat, 1, ceil(data_len/length(amps_mat)));
channel_amps = amps_mat(1:data_len);