diff options
| author | Andreas Eversberg <jolly@eversberg.eu> | 2017-08-13 14:15:53 +0200 |
|---|---|---|
| committer | Andreas Eversberg <jolly@eversberg.eu> | 2017-08-16 18:51:45 +0200 |
| commit | ee61c4362bd19e5fc9911cac244b77ddd08bb238 (patch) | |
| tree | f266b834f3e07df9d5c4056b39340f951a6e8bf0 /src/bnetz/bnetz.c | |
| parent | 41bd9999b1b8ba5127075c2350e65707f02f740a (diff) | |
B-Netz: Use standard deviation to determine if an FSK frame is valid or not
Diffstat (limited to 'src/bnetz/bnetz.c')
| -rw-r--r-- | src/bnetz/bnetz.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/src/bnetz/bnetz.c b/src/bnetz/bnetz.c index af3f82a..d9ccf3d 100644 --- a/src/bnetz/bnetz.c +++ b/src/bnetz/bnetz.c @@ -445,21 +445,23 @@ void bnetz_receive_tone(bnetz_t *bnetz, int bit) } /* A digit was received. */ -void bnetz_receive_telegramm(bnetz_t *bnetz, uint16_t telegramm, double level, double quality) +void bnetz_receive_telegramm(bnetz_t *bnetz, uint16_t telegramm, double level_avg, double level_dev, double quality_avg) { struct impulstelegramm *it; int digit = 0; /* drop any telegramm that is too bad */ - if (quality < 0.2) + if (level_dev / level_avg > 0.2) return; + PDEBUG_CHAN(DDSP, DEBUG_INFO, "RX Level: average=%.0f%% deviation=%.0f%% Quality: %.0f%%\n", level_avg * 100.0, level_dev / level_avg * 100.0, quality_avg * 100.0); + it = bnetz_telegramm2digit(telegramm); if (it) { digit = it->digit; - PDEBUG(DBNETZ, (bnetz->sender.loopback) ? DEBUG_NOTICE : DEBUG_INFO, "Received telegramm '%s' (RX Level: %.0f%% Quality=%.0f)\n", it->description, level * 100.0 + 0.5, quality * 100.0 + 0.5); + PDEBUG(DBNETZ, (bnetz->sender.loopback) ? DEBUG_NOTICE : DEBUG_INFO, "Received telegramm '%s'\n", it->description); } else { - PDEBUG(DBNETZ, DEBUG_DEBUG, "Received unknown telegramm digit '0x%04x' (RX Level: %.0f%% Quality=%.0f) (might be radio noise)\n", telegramm, level * 100.0 + 0.5, quality * 100.0 + 0.5); + PDEBUG(DBNETZ, DEBUG_DEBUG, "Received unknown telegramm digit '0x%04x' (might be radio noise)\n", telegramm); return; } |