Test of Kinematic GPS post-processing software
by John Beale March 24 2006
These plots show the reported drift over four hours of a static "rover"
GPS receiver, the Antaris LEA-4T recording raw pseudorange and
phase and using double-differencing based on ZOA1 CORS data from NGS and ultra-rapid orbit data from IGS. The DD sofware used was the Kinematic Precision version Beta 6 (March 22 2006).
These plots based on data generated from the base and rover RINEX observation files by the command
Process -commas -wgs84=o.txt -sp3=eph.sp3 RINEX base.rnx RINEX roving.rnx 2>debug.txt >misc.txt
Base reference observation data from ZOA1 CORS site in Fremont CA,
which is 17.5 km away from the rover location.
Rover receiver was Antaris 4 ublox dev.kit "AEK-4T". Car-mount type
patch antenna from kit sited on apartment roof with moderate sky
visibility. Major obstruction was a large tree to the south, visible in
the sky visibility plot showing satellite signal strength vs. Az/El
over a 24 hour period.
back to John's GPS page