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Transceiver: Print noise level for each burst in debug mode.

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This commit is contained in:
Alexander Chemeris
2015-06-04 00:14:51 -04:00
parent fdbf914584
commit 37bbfa2125
2 changed files with 14 additions and 10 deletions
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21
Transceiver52M/Transceiver.cpp
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@@ -619,7 +619,8 @@ SoftVector *Transceiver::demodulate(TransceiverState *state,
* and burst correlation type. Equalzation is currently disabled.
*/
SoftVector *Transceiver::pullRadioVector(GSM::Time &wTime, double &RSSI,
double &timingOffset, size_t chan)
double &timingOffset, double &noise,
size_t chan)
{
bool success, equalize = false;
complex amp;
@@ -694,6 +695,7 @@ SoftVector *Transceiver::pullRadioVector(GSM::Time &wTime, double &RSSI,
wTime = time;
RSSI = 20.0 * log10(rxFullScale / avg);
timingOffset = toa / mSPSRx;
noise = 20.0 * log10(rxFullScale / state->mNoiseLev);
delete radio_burst;
@@ -899,21 +901,22 @@ void Transceiver::driveReceiveFIFO(size_t chan)
double dBm; // in dBm
double TOA; // in symbols
int TOAint; // in 1/256 symbols
double noise; // noise level in dBFS
GSM::Time burstTime;
rxBurst = pullRadioVector(burstTime, RSSI, TOA, chan);
rxBurst = pullRadioVector(burstTime, RSSI, TOA, noise, chan);
if (rxBurst) {
dBm = RSSI+rssiOffset;
TOAint = (int) (TOA * 256.0 + 0.5); // round to closest integer
LOG(DEBUG) << "burst parameters: " << std::fixed
<< " time: " << burstTime
<< " RSSI: " << std::setprecision(1) << RSSI
<< " dBm: " << std::setprecision(1) << dBm
<< " TOA: " << std::setprecision(2) << TOA
<< " bits: " << *rxBurst;
LOG(DEBUG) << std::fixed << std::right
<< " time: " << burstTime
<< " RSSI: " << std::setw(5) << std::setprecision(1) << RSSI << "dBFS/" << std::setw(6) << -dBm << "dBm"
<< " noise: " << std::setw(5) << std::setprecision(1) << noise << "dBFS/" << std::setw(6) << -(noise+rssiOffset) << "dBm"
<< " TOA: " << std::setw(5) << std::setprecision(2) << TOA
<< " bits: " << *rxBurst;
char burstString[gSlotLen+10];
burstString[0] = burstTime.TN();
for (int i = 0; i < 4; i++)

3
Transceiver52M/Transceiver.h
View File

@@ -196,7 +196,8 @@ private:
/** Pull and demodulate a burst from the receive FIFO */
SoftVector *pullRadioVector(GSM::Time &wTime, double &RSSI,
double &timingOffset, size_t chan = 0);
double &timingOffset, double &noise,
size_t chan = 0);
/** Set modulus for specific timeslot */
void setModulus(size_t timeslot, size_t chan);