diff options
Diffstat (limited to 'gr-trellis/python/trellis/qa_trellis.py')
| -rw-r--r--[-rwxr-xr-x] | gr-trellis/python/trellis/qa_trellis.py | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/gr-trellis/python/trellis/qa_trellis.py b/gr-trellis/python/trellis/qa_trellis.py index 86c740a730..f248832204 100755..100644 --- a/gr-trellis/python/trellis/qa_trellis.py +++ b/gr-trellis/python/trellis/qa_trellis.py @@ -20,6 +20,8 @@ # Boston, MA 02110-1301, USA. # +from __future__ import division + import math import os @@ -71,7 +73,7 @@ class test_trellis (gr_unittest.TestCase): Runs some coding/decoding tests with a few different FSM specs. """ - for name, args in fsm_args.items(): + for name, args in list(fsm_args.items()): constellation = constells[args[2]] fsms = trellis.fsm(*args) noise = 0.1 @@ -85,7 +87,7 @@ class trellis_tb(gr.top_block): """ A simple top block for use testing gr-trellis. """ - def __init__(self, constellation, f, N0=0.25, seed=-666L): + def __init__(self, constellation, f, N0=0.25, seed=-666): """ constellation - a constellation object used for modulation. f - a finite state machine specification used for coding. @@ -96,14 +98,14 @@ class trellis_tb(gr.top_block): # packet size in bits (make it multiple of 16 so it can be packed in a short) packet_size = 1024*16 # bits per FSM input symbol - bitspersymbol = int(round(math.log(f.I())/math.log(2))) # bits per FSM input symbol + bitspersymbol = int(round(math.log(f.I()) / math.log(2))) # bits per FSM input symbol # packet size in trellis steps - K = packet_size/bitspersymbol + K = packet_size // bitspersymbol # TX src = blocks.lfsr_32k_source_s() # packet size in shorts - src_head = blocks.head(gr.sizeof_short, packet_size/16) + src_head = blocks.head(gr.sizeof_short, packet_size // 16) # unpack shorts to symbols compatible with the FSM input cardinality s2fsmi = blocks.packed_to_unpacked_ss(bitspersymbol, gr.GR_MSB_FIRST) # initial FSM state = 0 @@ -112,7 +114,7 @@ class trellis_tb(gr.top_block): # CHANNEL add = blocks.add_cc() - noise = analog.noise_source_c(analog.GR_GAUSSIAN,math.sqrt(N0/2),seed) + noise = analog.noise_source_c(analog.GR_GAUSSIAN,math.sqrt(N0 / 2),seed) # RX # data preprocessing to generate metrics for Viterbi |