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MMDVM
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More averaging of the centre and threshold.

This commit is contained in:
Jonathan Naylor 2017-01-21 18:57:39 +00:00
parent a5568efd51
commit 53067d36d0
2 changed files with 12 additions and 6 deletions
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14
YSFRX.cpp
View File

@ -119,7 +119,7 @@ void CYSFRX::processNone(q15_t sample)
}
if (m_dataPtr == m_endPtr) {
for (uint8_t i = 0U; i < 8U; i++) {
for (uint8_t i = 0U; i < 16U; i++) {
m_centre[i] = m_centreBest;
m_threshold[i] = m_thresholdBest;
}
@ -176,12 +176,18 @@ void CYSFRX::processData(q15_t sample)
m_centre[m_averagePtr] = m_centreBest;
m_averagePtr++;
if (m_averagePtr >= 8U)
if (m_averagePtr >= 16U)
m_averagePtr = 0U;
// Find the average centre and threshold values
m_centreVal = (m_centre[0U] + m_centre[1U] + m_centre[2U] + m_centre[3U]) >> 3;
m_thresholdVal = (m_threshold[0U] + m_threshold[1U] + m_threshold[2U] + m_threshold[3U]) >> 3;
m_centreVal = 0;
m_thresholdVal = 0;
for (uint8_t i = 0U; i < 16U; i++) {
m_centreVal += m_centre[i];
m_thresholdVal += m_threshold[i];
}
m_centreVal >>= 4;
m_thresholdVal >>= 4;
DEBUG4("YSFRX: sync found in Data (best) pos/centre/threshold", m_syncPtr, m_centreBest, m_thresholdBest);
DEBUG4("YSFRX: sync found in Data (val) pos/centre/threshold", m_syncPtr, m_centreVal, m_thresholdVal);

4
YSFRX.h
View File

@ -47,10 +47,10 @@ private:
uint16_t m_syncPtr;
q31_t m_maxCorr;
uint16_t m_lostCount;
q15_t m_centre[8U];
q15_t m_centre[16U];
q15_t m_centreVal;
q15_t m_centreBest;
q15_t m_threshold[8U];
q15_t m_threshold[16U];
q15_t m_thresholdVal;
q15_t m_thresholdBest;
uint8_t m_averagePtr;