GBS
Applicable to: UC6580, UM620 series, UM621 series, UM670A, UM680A, UM681A.
| Syntax | $-GBS,time,errLat,errLon,Lon,errAlt,Svid,Prob,Bias,Std,systemID*cs\r\n | |
|---|---|---|
| Example | $GPGBS,121314.00,0.5,0.6,0.9,03,,100.4,5.0,1,0*5C\r\n | |
| Description | RAIM error information | |
| Input/Output | Output | |
| Parameter Definition | ||
| Parameter | Format | Description |
| -- | STR | Positioning system flag GP - GPS standalone positioning GB - BDS standalone positioning GA - Galileo standalone positioning GL - GLONASS standalone positioning GI - NavIC standalone positioning GN - Dual or multiple constellations joint positioning |
| time | STR | UTC time; in the format of hhmmss.ss: hh - Hour mm - Minute ss.ss - Second |
| errLat | DOUBLE | Latitude error; unit: m; fixedly output 1 decimal place |
| errLon | DOUBLE | Longitude error; unit: m; fixedly output 1 decimal place |
| errAlt | DOUBLE | Altitude error; unit: m; fixedly output 1 decimal place |
| Svid | UINT | Number of satellites that most likely have problems; fixedly output 2 digits |
| Prob | DOUBLE | Probability of missed detection for the satellites that most likely have problems; specified to constant null |
| Bias | DOUBLE | Estimation error of the satellites that most likely have problems; specified to constant null |
| Std | DOUBLE | Standard deviation of the estimation error; specified to constant null |
| systemID | UINT | GNSS system ID; see GNSS Identifiers |
| signalID | UINT | Signal ID defined by NMEA protocol; see Signal Identifiers. |
| cs | U8 | Checksum; two hexadecimal characters obtained by calculating an XOR of all characters between but not including ‘$' to ‘*' in this message |