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Code Issues Releases Wiki Activity

modified Gray decoding corrected

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This commit is contained in:
cmayer 2019-06-02 11:49:52 +02:00
parent a4beabc993
commit fd72fa3bd5
1 changed files with 3 additions and 3 deletions
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6
python/physical_layer/MIL_STD_188_110A.py
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@ -78,7 +78,7 @@ class ScrambleData(object):
## ---- constellatios -----------------------------------------------------------
BPSK=np.array(zip(np.exp(2j*np.pi*np.arange(2)/2), [0,1]), common.CONST_DTYPE)
QPSK=np.array(zip(np.exp(2j*np.pi*np.arange(4)/4), [0,1,3,2]), common.CONST_DTYPE)
PSK8=np.array(zip(np.exp(2j*np.pi*np.arange(8)/8), [0,1,3,2,7,6,4,5]), common.CONST_DTYPE)
PSK8=np.array(zip(np.exp(2j*np.pi*np.arange(8)/8), [0,1,3,2,6,7,5,4]), common.CONST_DTYPE)
## ---- constellation indices ---------------------------------------------------
MODE_BPSK=0
@ -88,7 +88,7 @@ MODE_8PSK=2
## ---- mode definitions --------------------------------------------------------
MODE = [[{} for _ in range(8)] for _ in range(8)]
MODE[7][6] = {'bit_rate':4800, 'ci':MODE_8PSK, 'interleaver':['N', 1, 1], 'unknown':32,'known':16, 'nsymb': 1, 'coding_rate': 'n/a', 'repeat': 1}
MODE[7][7] = {'bit_rate':2400, 'ci':MODE_8PSK, 'interleaver':['N', 1, 1], 'unknown':32,'known':16, 'nsymb': 1, 'coding_rate': '1/2', 'repeat': 1}
MODE[7][7] = {'bit_rate':2400, 'ci':MODE_8PSK, 'interleaver':['S', 40, 72], 'unknown':32,'known':16, 'nsymb': 1, 'coding_rate': '1/2', 'repeat': 1}
MODE[6][4] = {'bit_rate':2400, 'ci':MODE_8PSK, 'interleaver':['S', 40, 72], 'unknown':32,'known':16, 'nsymb': 1, 'coding_rate': '1/2', 'repeat': 1}
MODE[4][4] = {'bit_rate':2400, 'ci':MODE_8PSK, 'interleaver':['L', 40,576], 'unknown':32,'known':16, 'nsymb': 1, 'coding_rate': '1/2', 'repeat': 1}
@ -283,7 +283,7 @@ class PhysicalLayer(object):
print('decode_soft_dec r=', r.shape)
if r.shape[0] == 0:
return []
print('deinterleaved bits: ', r>0)
##print('deinterleaved bits: ', [x for x in 1*(r>0)])
rd = self._depuncturer.process(r)
self._viterbi_decoder.reset()
decoded_bits = self._viterbi_decoder.udpate(rd)