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Bernese GPS Software Version 5.0 - Bernese GNSS Software

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20.4 Description of the Processing Examples<br />

a result without manual interactions, however stations may be missing in the solution.<br />

Using the default settings the BPE stops with an error if the station name is not in<br />

the abbreviation list, or if the antenna type is not listed in the phase center offsets<br />

file.<br />

PID 231 CODSPPAP: This is the parallelization script for CODSPP.<br />

PID 232 CODSPP P: CODSPP is started to synchronize the receiver clocks to <strong>GPS</strong> time.<br />

Also the code measurements are checked for bad observations and outliers are marked<br />

in the observation files.<br />

PID 233 CODXTR: Program CODXTR creates a summary from the output files written in<br />

the CODSPP step. The file is listed in the processing summary. A high rms value<br />

and/or a lot of outliers indicate a site with bad code tracking performance.<br />

Note for processing your own data: Stations showing a large rms are detected and<br />

listed in a deletion file (SPPyyssss.DEL in directory OUT). The rms threshold can be<br />

adjusted in panel “CODXTR 2: Options”. Both code and phase observation files will be<br />

added to that list. The script removes the observation files according to the deletion<br />

list.<br />

RXOBV3 runs in parallel only if option “Action if station not in abbreviation list” in panel<br />

“RXOBV3 2: Input Options 1” is set to ERROR. Otherwise, all stations are processed in one<br />

RXOBV3-run. This prevents problems when different RXOBV3 runs try to update the station<br />

abbreviation table at the same time.<br />

Further reading: Section 4.2: RINEX Observation Files (page 53), Section 6.2: Preprocessing<br />

on the RINEX Level (page 103), Section 6.2.4: Code Smoothing (page 106), Section 4.2.3:<br />

Import to <strong>Bernese</strong> (page 54), Section 6.3: Receiver Clock Synchronization and Preprocessing<br />

of Code Observations (page 108), Section 19.5.2: Parallel Processing (page 391).<br />

20.4.4.5 Iterative Data Screening<br />

#<br />

# Iterative data screening<br />

# ------------------------<br />

301 CLKEDT CLK_ED1 ANY 1 233<br />

302 CLKEDT CLK_ED2 ANY 1 301<br />

PID 301 CLKEDT: Result files from previous runs of this script for this session are deleted,<br />

and several programs are run in a loop:<br />

(1) <strong>GPS</strong>EST to create a residual file,<br />

(2) <strong>GPS</strong>XTR to compile a summary from the <strong>GPS</strong>EST program output,<br />

(3) RESRMS to screen the residual file for outliers,<br />

(4) RESCHK to check the RESRMS summary table for bad stations.<br />

If RESCHK detects bad stations (at most two stations per run), they are listed in<br />

the file ED1iyyssss.DEL (with i the iteration number, yy the two-digit year, and<br />

ssss the session), deleted, and the loop is repeated starting with <strong>GPS</strong>EST. After<br />

<strong>Bernese</strong> <strong>GPS</strong> <strong>Software</strong> <strong>Version</strong> <strong>5.0</strong> Page 453

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