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Get the convolution BER directly from the decoder.

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Jonathan Naylor
2021-06-27 17:29:55 +01:00
parent 50337639b2
commit 8547a210bd
8 changed files with 50 additions and 20 deletions
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13
NXDNConvolution.cpp
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@@ -1,5 +1,5 @@
/*
* Copyright (C) 2009-2016,2018 by Jonathan Naylor G4KLX
* Copyright (C) 2009-2016,2018,2021 by Jonathan Naylor G4KLX
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@@ -97,7 +97,7 @@ void CNXDNConvolution::decode(uint8_t s0, uint8_t s1)
m_newMetrics = tmp;
}
void CNXDNConvolution::chainback(unsigned char* out, unsigned int nBits)
unsigned int CNXDNConvolution::chainback(unsigned char* out, unsigned int nBits)
{
assert(out != NULL);
@@ -112,6 +112,15 @@ void CNXDNConvolution::chainback(unsigned char* out, unsigned int nBits)
WRITE_BIT1(out, nBits, bit != 0U);
}
unsigned int minCost = m_oldMetrics[0];
for (unsigned int i = 0U; i < NUM_OF_STATES; i++) {
if (m_oldMetrics[i] < minCost)
minCost = m_oldMetrics[i];
}
return minCost / (M >> 1);
}
void CNXDNConvolution::encode(const unsigned char* in, unsigned char* out, unsigned int nBits) const