diff options
Diffstat (limited to 'gnuradio-examples/python/channel-coding/test_tcm_parallel.py')
-rwxr-xr-x | gnuradio-examples/python/channel-coding/test_tcm_parallel.py | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/gnuradio-examples/python/channel-coding/test_tcm_parallel.py b/gnuradio-examples/python/channel-coding/test_tcm_parallel.py index 230bf4b98..f9dcb5852 100755 --- a/gnuradio-examples/python/channel-coding/test_tcm_parallel.py +++ b/gnuradio-examples/python/channel-coding/test_tcm_parallel.py @@ -15,7 +15,7 @@ def run_test (f,Kb,bitspersymbol,K,dimensionality,constellation,N0,seed,P): src = gr.lfsr_32k_source_s() src_head = gr.head (gr.sizeof_short,Kb/16*P) # packet size in shorts s2fsmi=gr.packed_to_unpacked_ss(bitspersymbol,gr.GR_MSB_FIRST) # unpack shorts to symbols compatible with the FSM input cardinality - s2p = gr.stream_to_streams(2,P) # serial to parallel + s2p = gr.stream_to_streams(gr.sizeof_short,P) # serial to parallel enc = trellis.encoder_ss(f,0) # initiali state = 0 mod = gr.chunks_to_symbols_sf(constellation,dimensionality) @@ -26,11 +26,10 @@ def run_test (f,Kb,bitspersymbol,K,dimensionality,constellation,N0,seed,P): add.append(gr.add_ff()) noise.append(gr.noise_source_f(gr.GR_GAUSSIAN,math.sqrt(N0/2),seed)) - # RX metrics = trellis.metrics_f(f.O(),dimensionality,constellation,trellis.TRELLIS_EUCLIDEAN) # data preprocessing to generate metrics for Viterbi va = trellis.viterbi_s(f,K,0,-1) # Put -1 if the Initial/Final states are not set. - p2s = gr.streams_to_stream(2,P) # parallel to serial + p2s = gr.streams_to_stream(gr.sizeof_short,P) # parallel to serial fsmi2s=gr.unpacked_to_packed_ss(bitspersymbol,gr.GR_MSB_FIRST) # pack FSM input symbols to shorts dst = gr.check_lfsr_32k_s() @@ -90,14 +89,16 @@ def main(args): tot_s=0 # total number of transmitted shorts terr_s=0 # total number of shorts in error + terr_p=0 # total number of packets in error for i in range(rep): (s,e)=run_test(f,Kb,bitspersymbol,K,dimensionality,constellation,N0,-long(666+i),P) # run experiment with different seed to get different noise realizations tot_s=tot_s+s terr_s=terr_s+e - if (i%10==0) & (i>0): # display progress - print i,s,e,tot_s,terr_s, '%e' % ((1.0*terr_s)/tot_s) + terr_p=terr_p+(terr_s!=0) + if ((i+1)%100==0) : # display progress + print i+1,terr_p, '%.2e' % ((1.0*terr_p)/(i+1)),tot_s,terr_s, '%.2e' % ((1.0*terr_s)/tot_s) # estimate of the (short or bit) error rate - print tot_s,terr_s, '%e' % ((1.0*terr_s)/tot_s) + print rep,terr_p, '%.2e' % ((1.0*terr_p)/(i+1)),tot_s,terr_s, '%.2e' % ((1.0*terr_s)/tot_s) if __name__ == '__main__': |