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-rwxr-xr-xgr-trellis/examples/python/test_viterbi_equalization.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/gr-trellis/examples/python/test_viterbi_equalization.py b/gr-trellis/examples/python/test_viterbi_equalization.py
index f83125136c..f1e61f90cb 100755
--- a/gr-trellis/examples/python/test_viterbi_equalization.py
+++ b/gr-trellis/examples/python/test_viterbi_equalization.py
@@ -18,7 +18,7 @@ def run_test (f,Kb,bitspersymbol,K,dimensionality,tot_constellation,N0,seed):
# TX
src = gr.lfsr_32k_source_s()
- src_head = gr.head (gr.sizeof_short,Kb/16) # packet size in shorts
+ src_head = blocks.head (gr.sizeof_short,Kb/16) # packet size in shorts
s2fsmi = blocks.packed_to_unpacked_ss(bitspersymbol,gr.GR_MSB_FIRST) # unpack shorts to symbols compatible with the FSM input cardinality
enc = trellis.encoder_ss(f,0) # initial state = 0
# essentially here we implement the combination of modulation and channel as a memoryless modulation (the memory induced by the channel is hidden in the FSM)