Bernese GPS Software Version 5.0 - Bernese GNSS Software

10. Station Coordinates and Velocities
Because the section on kinematic coordinate estimation may significantly increase the size
of the GPSEST output file, the writing of the information may be suppressed with option
“Suppression of output concerning epoch parameters” in panel “GPSEST 3.3: Extended Printing
Options”.
Estimated kinematic coordinate corrections may be extracted from the GPSEST program
output into a summary file using program GPSXTR. The program writes all corrections for
which the formal error given in the GPSEST program output is smaller 0.1 m (or 10 m if
no phase observations are used). The extraction program is, however, limited to one single
station or one LEO. Note that for LEOs the X,Y,Z-components in the Earth fixed system
are reported instead of the north, east, and up components. Consult the on-line help of
GPSXTR for more information.
10.4.4 Using the Kinematic Coordinate File
Both programs CODSPP and GPSEST may write estimated kinematic coordinates to a
kinematic coordinates file (description in Section 22.8.9). That file may contain kinematic
positions of more than one station. Three different flags indicate the quality of the individual
epoch estimates:
K : kinematic coordinates estimated with enough redundancy
S : estimated from a small number of observations or
singularity in the estimation
X : no estimation, linearly interpolated
The kinematic coordinate file may be introduced into the programs CODSPP, MAUPRP,
and GPSEST. Each station with at least one position in the kinematic coordinates file is
considered as kinematic station. The a priori positions for each epoch are taken from this file
and, consequently, observations are skipped for epochs without kinematic input coordinates.
Station coordinates may be fixed on the input kinematic coordinates or improvements may
be estimated. It is even possible to estimate static coordinates when introducing a priori
coordinates through a kinematic coordinate file.
If estimation of kinematic positions is enabled for a station in the kinematic coordinate file,
all epochs from the file are processed (independently of the flag). If no kinematic coordinates
are estimated only the positions labeled with flag K (position OK) are considered. Epochs
with other flags are skipped for this station.
There are two more programs that use the kinematic coordinates file:
• GPSSIM (”Menu>Service>Generate simulated observation data”, description in Chapter 17) may
read the file to generate synthetic Bernese observation files for kinematic stations.
• Kinematic coordinates for a LEO may be converted into the precise orbit format using
the program KINPRE.
Both programs consider only epochs labeled with flag K.
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