From 9e625c4821f4c63421b3d3747c0c4f358fef6c5f Mon Sep 17 00:00:00 2001
From: Douglas Anderson <danderson@ntia.doc.gov>
Date: Sun, 12 Feb 2017 15:52:19 -0800
Subject: python3: update non-GRC components to use python2 or python3
---
gr-trellis/examples/python/test_tcm.py | 27 +++++++++++++++------------
1 file changed, 15 insertions(+), 12 deletions(-)
mode change 100755 => 100644 gr-trellis/examples/python/test_tcm.py
(limited to 'gr-trellis/examples/python/test_tcm.py')
diff --git a/gr-trellis/examples/python/test_tcm.py b/gr-trellis/examples/python/test_tcm.py
old mode 100755
new mode 100644
index dfc565616e..e2eb87fcd7
--- a/gr-trellis/examples/python/test_tcm.py
+++ b/gr-trellis/examples/python/test_tcm.py
@@ -1,5 +1,8 @@
#!/usr/bin/env python
+from __future__ import print_function
+from __future__ import division
+from __future__ import unicode_literals
from gnuradio import gr
from gnuradio import trellis, digital, blocks
from gnuradio import eng_notation
@@ -33,7 +36,7 @@ def run_test (f,Kb,bitspersymbol,K,dimensionality,constellation,N0,seed):
# CHANNEL
add = blocks.add_ff()
- noise = analog.noise_source_f(analog.GR_GAUSSIAN,math.sqrt(N0/2),long(seed))
+ noise = analog.noise_source_f(analog.GR_GAUSSIAN,math.sqrt(N0 / 2),int(seed))
# RX
va = trellis.viterbi_combined_fs(f,K,0,0,dimensionality,constellation,digital.TRELLIS_EUCLIDEAN) # Put -1 if the Initial/Final states are not set.
@@ -56,7 +59,7 @@ def run_test (f,Kb,bitspersymbol,K,dimensionality,constellation,N0,seed):
#print "final state = " , enc.ST()
if len(dst.data()) != len(packet):
- print "Error: not enough data:", len(dst.data()), len(packet)
+ print("Error: not enough data:", len(dst.data()), len(packet))
ntotal=len(packet)
nwrong = sum(abs(packet-numpy.array(dst.data())));
return (ntotal,nwrong,abs(packet-numpy.array(dst.data())))
@@ -73,7 +76,7 @@ def main():
(options, args) = parser.parse_args ()
if len(args) != 0:
parser.print_help()
- raise SystemExit, 1
+ raise SystemExit(1)
fname=options.fsm_file
esn0_db=float(options.esn0)
@@ -84,20 +87,20 @@ def main():
# alternatively you can specify the fsm from its generator matrix
#f=trellis.fsm(1,2,[5,7])
Kb=1024*16 # packet size in bits (make it multiple of 16 so it can be packed in a short)
- bitspersymbol = int(round(math.log(f.I())/math.log(2))) # bits per FSM input symbol
- K=Kb/bitspersymbol # packet size in trellis steps
+ bitspersymbol = int(round(math.log(f.I()) / math.log(2))) # bits per FSM input symbol
+ K=Kb / bitspersymbol # packet size in trellis steps
modulation = fsm_utils.psk4 # see fsm_utlis.py for available predefined modulations
dimensionality = modulation[0]
constellation = modulation[1]
- if len(constellation)/dimensionality != f.O():
+ if len(constellation) / dimensionality != f.O():
sys.stderr.write ('Incompatible FSM output cardinality and modulation size.\n')
sys.exit (1)
# calculate average symbol energy
Es = 0
for i in range(len(constellation)):
Es = Es + constellation[i]**2
- Es = Es / (len(constellation)/dimensionality)
- N0=Es/pow(10.0,esn0_db/10.0); # calculate noise variance
+ Es = Es / (old_div(len(constellation,dimensionality)))
+ N0=Es / pow(10.0,old_div(esn0_db,10.0)); # calculate noise variance
tot_b=0 # total number of transmitted bits
terr_b=0 # total number of bits in error
@@ -108,14 +111,14 @@ def main():
terr_b=terr_b+e
terr_p=terr_p+(e!=0)
if ((i+1)%100==0) : # display progress
- print i+1,terr_p, '%.2e' % ((1.0*terr_p)/(i+1)),tot_b,terr_b, '%.2e' % ((1.0*terr_b)/tot_b)
+ print(i+1,terr_p, '%.2e' % ((1.0*terr_p) / (i+1)),tot_b,terr_b, '%.2e' % ((1.0*terr_b) / tot_b))
if e!=0:
- print "rep=",i, e
+ print("rep=",i, e)
for k in range(Kb):
if pattern[k]!=0:
- print k
+ print(k)
# estimate of the bit error rate
- print rep,terr_p, '%.2e' % ((1.0*terr_p)/(i+1)),tot_b,terr_b, '%.2e' % ((1.0*terr_b)/tot_b)
+ print(rep,terr_p, '%.2e' % ((1.0*terr_p) / (i+1)),tot_b,terr_b, '%.2e' % ((1.0*terr_b) / tot_b))
--
cgit v1.2.3