CSI Wireless Vector Sensor Reference Manual page 110

Channel Data Array
Name Components
Channel Channel number
SV Satellite being tracked, 0 == not
tracked
Status Status bit mask (code carrier bit
frame)
LastSubFram Last sub frame processed in the GPS
e message
EphmVFlag Ephemeris valid flag
EphmHealth Satellite health from sub frame 1 of
the GPS message
AlmVFlag Almanac valid flag
AlmHealth Almanac health from sub frame 4 of
the GPS message
Elev Elevation angle in degrees
Azimuth ½ the azimuth in degrees
URA User range error from sub frame 1
of the GPS message
Spare Not used at this time
CliForSNR Code lock indicator for SNR. SNR
= 10.0 * 4096 CliForSNR /
Nose_floor) where Nise_floor =
80000.0
DiffCorr 100 times the differential correction
for this channel's psuedorange
PosResid 10 times the position residual from
the GPS solution for this chanel
VelResid 10 times the velocity residual from
the GPS solution for this channel
DoppHZ Expected Doppler for this channel
in Hz
NCOHz Carrier track offset for this channel
in Hz
Vector Sensor Reference Manual
Type Bytes Value
Byte 1 0 to 12
Byte 1 0 to 32
Byte 1 Bit 0 = code lock
1 = carrier lock
2 = bit lock
3 = frame sync
4 = frame sync and
new epoch
5 = channel reset
6 = phase lock
7 = spare
Byte 1 1 to 5
Byte 1 0 = not logged
1 = invalid
2 = valid
3 = has data (not
yet validated)
Byte 1 See ICD-GPS-200
Byte 1 0 = not logged
1 = invalid
2 = valid
3 = has data (not
yet validated)
Byte 1 See ICD-GPS-200
Char 1 -90 to 90
Byte 1 0 to 180 degrees
represents 0 to 360
degrees
Byte 1 See ICD-GPS-200
Byte 1 Future use
Unsigned 2 Positive
short
Short 2
Short 2
Short 2
Short 2
Short 2
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