misc/adsb-tools
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MLAT (width and frequency) and RSSI (width) scaling working.

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This commit is contained in:
Ian Gulliver
2016-02-15 22:01:32 +00:00
parent bae4398a61
commit cbae234327
3 changed files with 46 additions and 6 deletions
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7
airspy_adsb.c
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@@ -7,8 +7,7 @@
#include "airspy_adsb.h"
struct airspy_adsb_parser_state {
uint64_t mlat_timestamp_last;
uint64_t mlat_timestamp_generation;
struct mlat_state mlat_state;
};
static bool airspy_adsb_parse_common(char *, struct packet *, struct airspy_adsb_parser_state *);
@@ -60,7 +59,7 @@ static bool airspy_adsb_parse_common(char *in, struct packet *packet, struct air
return false;
}
uint16_t mlat_mhz = 2 * hex_to_int(&in[9], 1);
packet->mlat_timestamp = hex_to_int(in, 4) * (MLAT_MHZ / mlat_mhz);
packet->rssi = hex_to_int(&in[12], 2) * (RSSI_MAX / UINT16_MAX);
packet->mlat_timestamp = mlat_timestamp_scale_in(hex_to_int(in, 4), UINT32_MAX, mlat_mhz, &state->mlat_state);
packet->rssi = rssi_scale_in(hex_to_int(&in[12], 2), UINT16_MAX);
return true;
}