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Add fine adjustment to the DMR/YSF thresholds.

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This commit is contained in:
Jonathan Naylor 2016-06-21 07:25:25 +01:00
parent a3ea870b52
commit 17f6314f90
9 changed files with 83 additions and 8 deletions
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22
DMRSlotRX.cpp
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@ -61,7 +61,8 @@ m_colorCode(0U),
m_delay(0U),
m_state(DMRRXS_NONE),
m_n(0U),
m_type(0U)
m_type(0U),
m_scale(SCALING_FACTOR)
{
}
@ -270,7 +271,7 @@ void CDMRSlotRX::correlateSync(bool first)
if (corr > m_maxCorr) {
q15_t centre = (max + min) >> 1;
q31_t v1 = (max - centre) * SCALING_FACTOR;
q31_t v1 = (max - centre) * m_scale;
q15_t threshold = q15_t(v1 >> 15);
uint8_t sync[DMR_SYNC_BYTES_LENGTH];
@ -371,3 +372,20 @@ void CDMRSlotRX::setDelay(uint8_t delay)
m_delay = delay;
}
void CDMRSlotRX::setThreshold(int8_t percent)
{
q31_t res = SCALING_FACTOR * 1000;
if (percent > 0) {
for (int8_t i = 0; i < percent; i++)
res += SCALING_FACTOR;
} else if (percent < 0) {
for (int8_t i = 0; i < -percent; i++)
res -= SCALING_FACTOR;
}
m_scale = res / 1000;
DEBUG2("DMR, Scale", m_scale);
}