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Make signalLevel represent the SNR in dB, rather than a somewhat arbitrary amplitude value.

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Include SNR values when dumping message contents.
This commit is contained in:
Oliver Jowett 2014-09-15 02:49:11 +01:00
parent 0378620445
commit 2e45a59986
4 changed files with 33 additions and 27 deletions
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2
dump1090.h
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@ -88,7 +88,7 @@
#define MODES_ASYNC_BUF_SAMPLES (MODES_ASYNC_BUF_SIZE / 2) // Each sample is 2 bytes
#define MODES_AUTO_GAIN -100 // Use automatic gain
#define MODES_MAX_GAIN 999999 // Use max available gain
#define MODES_MSG_SQUELCH_LEVEL 0x02FF // Average signal strength limit
#define MODES_MSG_SQUELCH_FACTOR 16 // Min SNR expressed as an amplitude ratio, scaled by 10. 20log(16/10) = 4.1dB
#define MODES_MSG_ENCODER_ERRS 3 // Maximum number of encoding errors
// When changing, change also fixBitErrors() and modesInitErrorTable() !!