Table des Matières
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142
GST: GNSS Pseudo-range Error Statistics
$--GST,m1,f2,f3,f4,f5,f6,f7,f8*cc
Parameter
$GPGST: Only GPS satellites are used.
"$--GST"
$GLGST: Only GLONASS satellites are used.
Header
$GNGST: Several constellations (GPS, SBAS,
GLONASS, BEIDOU) are used.
m1
Current UTC time of position (hhmmss.ss)
RMS value of standard deviation of range inputs
f2
(DGNSS corrections included), in meters
Standard deviation of semi-major axis of error
f3
ellipse, in meters
Standard deviation of semi-minor axis of error
f4
ellipse, in meters
Orientation of semi-major axis of error ellipse, in
f5
degrees from true North
f6
Standard deviation of latitude error, in meters
f7
Standard deviation of longitude error, in meters
f8
Standard deviation of altitude error, in meters
*cc
Checksum
GSV : Satellites GNSS visibles
$--GSV,d1,d2,d3,n(d4,d5,d6,f7),h8*cc
Parameter
$GPGSV: GPS satellites.
$GLGSV: GLONASS satellites
$GAGSV: GALILEO satellites
"$--GSV"
$GSGSV: SBAS satellites (including
Header
QZSS L1 SAIF)
$GQGSV: QZSS satellites
$GBGSV: BeiDou satellites
$GIGSV: IRNSS satellites
d1
Total number of messages
d2
Message number
d3
Total number of satellites in view
d4
Satellite PRN
d5
Elevation in degrees
d6
Azimuth in degrees
f7
SNR in dB.Hz
h8
Signal ID
*cc
Checksum
Description
Description
Range
$GPGST,
$GLGST,
$GNGST
000000.00-
235959.99
0.000-999.999
0.000-999.999
0.000-999.999
0 to 180
0.000-999.999
0.000-999.999
0.000-999.999
*00-*FF
Range
$GPGSV,
$GLGSV
$GAGSV
$GSGSV
$GQGSV
$GBGSV
$GIGSV
1-4
1-4
0-16
GPS: 1-32
GLONASS: 65-96
SBAS: 1-44
GALILEO: 1-30
QZSS: 1-5
BEIDOU: 1-35
IRNSS: 1-7
0-90
0-359
30.0-60.0
0-F
*00-*FF
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