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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
YSFRX.cpp
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@ -55,7 +55,8 @@ m_bufferPtr(0U),
m_symbolPtr(0U),
m_lostCount(0U),
m_centre(0),
m_threshold(0)
m_threshold(0),
m_scale(SCALING_FACTOR)
{
m_buffer = m_outBuffer + 1U;
}
@ -123,7 +124,7 @@ void CYSFRX::processNone(q15_t sample)
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);
uint16_t ptr = m_symbolPtr + 1U;
@ -242,3 +243,20 @@ void CYSFRX::processData(q15_t sample)
}
}
void CYSFRX::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("YSF, Scale", m_scale);
}