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author | jcorgan | 2007-11-27 19:15:30 +0000 |
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committer | jcorgan | 2007-11-27 19:15:30 +0000 |
commit | 7e5ff593896c6c1d832c17a7e0d0eb42f2277d9d (patch) | |
tree | 98879d1a1b4f02468cc1578c08e032164db9f6f2 /gr-trellis/src/examples/test_turbo_equalization.py | |
parent | b07df82d5536f65ad50d3029d69bd27cd25235de (diff) | |
download | gnuradio-7e5ff593896c6c1d832c17a7e0d0eb42f2277d9d.tar.gz gnuradio-7e5ff593896c6c1d832c17a7e0d0eb42f2277d9d.tar.bz2 gnuradio-7e5ff593896c6c1d832c17a7e0d0eb42f2277d9d.zip |
Implements ticket:207
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@7042 221aa14e-8319-0410-a670-987f0aec2ac5
Diffstat (limited to 'gr-trellis/src/examples/test_turbo_equalization.py')
-rwxr-xr-x | gr-trellis/src/examples/test_turbo_equalization.py | 38 |
1 files changed, 19 insertions, 19 deletions
diff --git a/gr-trellis/src/examples/test_turbo_equalization.py b/gr-trellis/src/examples/test_turbo_equalization.py index ff0497e2b..612f6951c 100755 --- a/gr-trellis/src/examples/test_turbo_equalization.py +++ b/gr-trellis/src/examples/test_turbo_equalization.py @@ -9,7 +9,7 @@ import sys import fsm_utils -def make_rx(fg,fo,fi,dimensionality,tot_constellation,K,interleaver,IT,Es,N0,type): +def make_rx(tb,fo,fi,dimensionality,tot_constellation,K,interleaver,IT,Es,N0,type): metrics_in = trellis.metrics_f(fi.O(),dimensionality,tot_constellation,trellis.TRELLIS_EUCLIDEAN) # data preprocessing to generate metrics for innner SISO scale = gr.multiply_const_ff(1.0/N0) gnd = gr.vector_source_f([0],True); @@ -30,27 +30,27 @@ def make_rx(fg,fo,fi,dimensionality,tot_constellation,K,interleaver,IT,Es,N0,typ siso_out.append( trellis.viterbi_s(fo,K,0,-1) ) # no soft outputs needed # connect first stage - fg.connect (gnd,inter[0]) - fg.connect (metrics_in,scale) - fg.connect (scale,(siso_in[0],1)) + tb.connect (gnd,inter[0]) + tb.connect (metrics_in,scale) + tb.connect (scale,(siso_in[0],1)) # connect the rest for it in range(IT): if it < IT-1: - fg.connect (metrics_in,(siso_in[it+1],1)) - fg.connect (siso_in[it],deinter[it],(siso_out[it],1)) - fg.connect (gnd,(siso_out[it],0)) - fg.connect (siso_out[it],inter[it+1]) - fg.connect (inter[it],(siso_in[it],0)) + tb.connect (metrics_in,(siso_in[it+1],1)) + tb.connect (siso_in[it],deinter[it],(siso_out[it],1)) + tb.connect (gnd,(siso_out[it],0)) + tb.connect (siso_out[it],inter[it+1]) + tb.connect (inter[it],(siso_in[it],0)) else: - fg.connect (siso_in[it],deinter[it],siso_out[it]) - fg.connect (inter[it],(siso_in[it],0)) + tb.connect (siso_in[it],deinter[it],siso_out[it]) + tb.connect (inter[it],(siso_in[it],0)) return (metrics_in,siso_out[IT-1]) def run_test (fo,fi,interleaver,Kb,bitspersymbol,K,dimensionality,tot_constellation,Es,N0,IT,seed): - fg = gr.flow_graph () + tb = gr.top_block () # TX src = gr.lfsr_32k_source_s() @@ -67,17 +67,17 @@ def run_test (fo,fi,interleaver,Kb,bitspersymbol,K,dimensionality,tot_constellat noise = gr.noise_source_f(gr.GR_GAUSSIAN,math.sqrt(N0/2),seed) # RX - (head,tail) = make_rx(fg,fo,fi,dimensionality,tot_constellation,K,interleaver,IT,Es,N0,trellis.TRELLIS_MIN_SUM) + (head,tail) = make_rx(tb,fo,fi,dimensionality,tot_constellation,K,interleaver,IT,Es,N0,trellis.TRELLIS_MIN_SUM) fsmi2s = gr.unpacked_to_packed_ss(bitspersymbol,gr.GR_MSB_FIRST) # pack FSM input symbols to shorts dst = gr.check_lfsr_32k_s(); - fg.connect (src,src_head,s2fsmi,enc_out,inter,enc_in,mod) - fg.connect (mod,(add,0)) - fg.connect (noise,(add,1)) - fg.connect (add,head) - fg.connect (tail,fsmi2s,dst) + tb.connect (src,src_head,s2fsmi,enc_out,inter,enc_in,mod) + tb.connect (mod,(add,0)) + tb.connect (noise,(add,1)) + tb.connect (add,head) + tb.connect (tail,fsmi2s,dst) - fg.run() + tb.run() ntotal = dst.ntotal () nright = dst.nright () |