function?rx_signal?=?channel（tx_signal?cir?sim_options）;

global?sim_consts;

[n_tx_antennas?n_rx_antennas]?=?get_n_antennas（sim_options）;

%?Channel?effect
rx_signal?=?zeros（n_rx_antennas?size（tx_signal2）+size（cir2）-1）;
for?rx_ant?=?1:n_rx_antennas???
???for?tx_ant?=?1:n_tx_antennas
??????rx_signal（rx_ant:）?=?rx_signal（rx_ant:）?+?...
?????????conv（tx_signal（tx_ant:）?cir（（rx_ant-1）*n_tx_antennas+tx_ant:））;
???end
end

len?=?size（rx_signal?2）;

%?Add?noise
%?calculate?noise?variance
%?64/52?scale?factor?normalizes?the?noise?with?the?used?subcarrier?number
noise_var?=?64/52/（10^（sim_options.SNR/10））/2;

noise?=?sqrt（noise_var）?*?（randn（n_rx_antennas?len）?+?j*randn（n_rx_antennas?len））;

extra_noise?=?sqrt（noise_var）?*?（randn（n_rx_antennassim_consts.ExtraNoiseSamples）?+?...
???j*randn（n_rx_antennas?sim_consts.ExtraNoiseSamples））;

%?end?noise?is?added?to?prevent?simulation?from?crashing?from?incorrect?timing?in?receiver
end_noise?=?sqrt（noise_var）?*?（randn（n_rx_antennas170）?+?j*randn（n_rx_antennas?170））;

%?add?noise
rx_signal?=?rx_signal+noise;

%?extra?noise?samples?are?inserted?before?the?packet?to?test?the?packet?search?algorithm
rx_signal?=?[extra_noise?rx_signal?end_noise];

%Create?frequency?offset
rx_signal?=?create_freq_offset（rx_signal?sim_options.FreqError）;

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件???????1346??2012-11-21?12:00??802.11a?OFDM?MATLAB\channel.m

?????文件????????400??2012-11-21?12:00??802.11a?OFDM?MATLAB\create_freq_offset.m

?????文件????????380??2012-11-21?12:00??802.11a?OFDM?MATLAB\get_bits_per_symbol.m

?????文件???????1045??2012-11-21?12:00??802.11a?OFDM?MATLAB\get_channel_ir.m

?????文件????????245??2012-11-21?12:00??802.11a?OFDM?MATLAB\get_n_antennas.m

?????文件????????554??2012-11-21?12:00??802.11a?OFDM?MATLAB\get_punc_params.m

?????文件???????1056??2012-11-21?12:00??802.11a?OFDM?MATLAB\phase_noise_model.m

?????文件????????652??2012-11-21?12:00??802.11a?OFDM?MATLAB\readme.txt

?????文件???????2392??2012-11-21?12:00??802.11a?OFDM?MATLAB\receiver.m

?????文件???????2600??2012-11-21?12:00??802.11a?OFDM?MATLAB\runsim.m

?????文件?????????88??2012-11-21?12:00??802.11a?OFDM?MATLAB\rx_bpsk_demod.m

?????文件????????577??2012-11-21?12:00??802.11a?OFDM?MATLAB\rx_deinterleave.m

?????文件????????607??2012-11-21?12:00??802.11a?OFDM?MATLAB\rx_demodulate.m

?????文件????????906??2012-11-21?12:00??802.11a?OFDM?MATLAB\rx_depuncture.m

?????文件???????2307??2012-11-21?12:00??802.11a?OFDM?MATLAB\rx_diversity_proc.m

?????文件???????1208??2012-11-21?12:00??802.11a?OFDM?MATLAB\rx_estimate_channel.m

?????文件???????1524??2012-11-21?12:00??802.11a?OFDM?MATLAB\rx_find_packet_edge.m

?????文件???????1351??2012-11-21?12:00??802.11a?OFDM?MATLAB\rx_fine_time_sync.m

?????文件???????1280??2012-11-21?12:00??802.11a?OFDM?MATLAB\rx_frequency_sync.m

?????文件????????460??2012-11-21?12:00??802.11a?OFDM?MATLAB\rx_gen_chan_amps.m

?????文件????????444??2012-11-21?12:00??802.11a?OFDM?MATLAB\rx_gen_deintlvr_patt.m

?????文件????????722??2012-11-21?12:00??802.11a?OFDM?MATLAB\rx_init_viterbi.m

?????文件????????292??2012-11-21?12:00??802.11a?OFDM?MATLAB\rx_mr_combiner.m

?????文件????????596??2012-11-21?12:00??802.11a?OFDM?MATLAB\rx_phase_tracker.m

?????文件???????3344??2012-11-21?12:00??802.11a?OFDM?MATLAB\rx_pilot_phase_est.m

?????文件????????475??2012-11-21?12:00??802.11a?OFDM?MATLAB\rx_qam16_demod.m

?????文件???????1454??2012-11-21?12:00??802.11a?OFDM?MATLAB\rx_qam64_demod.m

?????文件????????264??2012-11-21?12:00??802.11a?OFDM?MATLAB\rx_qpsk_demod.m

?????文件????????610??2012-11-21?12:00??802.11a?OFDM?MATLAB\rx_radon_hurwitz.m

?????文件???????1845??2012-11-21?12:00??802.11a?OFDM?MATLAB\rx_timed_to_freqd.m

............此處省略26個文件信息