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DeInterleave & Decode Working

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This commit is contained in:
Cort Buffington 2016-09-15 07:52:16 -05:00
parent fa18a9814f
commit 384a2c5400
1 changed files with 19 additions and 27 deletions
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46
bptc19696.py
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@ -9,13 +9,11 @@
from __future__ import print_function
from bitstring import BitArray
from binascii import b2a_hex as h
from time import time
# Does anybody read this stuff? There's a PEP somewhere that says I should do this.
__author__ = 'Cortney T. Buffington, N0MJS'
__copyright__ = 'Copyright (c) 2016 Cortney T. Buffington, N0MJS and the K0USY Group'
__credits__ = 'Colin Durbridge, G4EML, Steve Zingman, N4IRS; Mike Zingman, N4IRR; Jonathan Naylor, G4KLX; Hans Barthen, DL5DI; Torsten Shultze, DG1HT'
__credits__ = 'Jonathan Naylor, G4KLX; Ian Wraith'
__license__ = 'Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported'
__maintainer__ = 'Cort Buffington, N0MJS'
__email__ = 'n0mjs@me.com'
@ -35,49 +33,43 @@ def deint_196(_data):
def extract_196(_data):
databits = BitArray()
databits.append(_data[4:12])
databits.append(_data[19:30])
databits.append(_data[34:45])
databits.append(_data[49:60])
databits.append(_data[64:75])
databits.append(_data[79:90])
databits.append(_data[94:105])
databits.append(_data[109:120])
databits.append(_data[124:135])
databits.append(_data[16:27])
databits.append(_data[31:42])
databits.append(_data[46:57])
databits.append(_data[61:72])
databits.append(_data[76:87])
databits.append(_data[91:102])
databits.append(_data[106:117])
databits.append(_data[121:132])
return databits.tobytes()
if __name__ == '__main__':
from binascii import b2a_hex as h
# Validation Example
data = '\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f\x20'
t0 = time()
bin_data = binary_196(data)
t1 = time()
deint_data = deint_196(bin_data)
t2 = time()
ext_data = extract_196(deint_data)
t3 = time()
print('binary extraction time:', t1-t0)
print('deinterleave time: ', t2-t1)
print('byte extraction time: ',t3-t2,'\n')
print('Original 33 byte data block:')
print('original 33 byte data block:')
print(h(data))
print(len(data))
print()
print('Extracted binary data (distarding sync)')
print('binary data (discarding sync)')
print(bin_data.len)
print(bin_data.bin)
print(bin_data)
print()
print('Deinterleaved binary data')
print('deinterleaved binary data')
print(deint_data.len)
print(deint_data.bin)
print(deint_data)
print()
print('12 Bytes LC+RS (9,3)')
print(len(ext_data))
print('decoded hex data')
print(len(ext_data)*8)
print(h(ext_data))