diff options
Diffstat (limited to 'Transceiver52M/Transceiver.cpp')
| -rw-r--r-- | Transceiver52M/Transceiver.cpp | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/Transceiver52M/Transceiver.cpp b/Transceiver52M/Transceiver.cpp index d4ca4b9..2e09512 100644 --- a/Transceiver52M/Transceiver.cpp +++ b/Transceiver52M/Transceiver.cpp @@ -44,6 +44,15 @@ using namespace GSM; /* Number of running values use in noise average */ #define NOISE_CNT 20 +/* + * Burst detection threshold + * + * Decision threshold value for burst gating on peak-to-average value of + * correlated synchronization sequences. Lower values pass more bursts up + * to upper layers but will increase the false detection rate. + */ +#define BURST_THRESH 4.0 + TransceiverState::TransceiverState() : mRetrans(false), mNoiseLev(0.0), mNoises(NOISE_CNT), mPower(0.0) { @@ -534,23 +543,22 @@ Transceiver::CorrType Transceiver::expectedCorrType(GSM::Time currTime, int Transceiver::detectBurst(signalVector &burst, complex &, float &toa, CorrType type) { - float threshold = 5.0, rc = 0; + int rc = 0; switch (type) { case EDGE: - rc = detectEdgeBurst(burst, mTSC, threshold, mSPSRx, + rc = detectEdgeBurst(burst, mTSC, BURST_THRESH, mSPSRx, amp, toa, mMaxExpectedDelayNB); if (rc > 0) break; else type = TSC; case TSC: - rc = analyzeTrafficBurst(burst, mTSC, threshold, mSPSRx, + rc = analyzeTrafficBurst(burst, mTSC, BURST_THRESH, mSPSRx, amp, toa, mMaxExpectedDelayNB); break; case RACH: - threshold = 6.0; - rc = detectRACHBurst(burst, threshold, mSPSRx, amp, toa, + rc = detectRACHBurst(burst, BURST_THRESH, mSPSRx, amp, toa, mMaxExpectedDelayAB); break; default: |