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Bernese GPS Software Version 5.0 - Bernese GNSS Software

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22.8 Station Related Files<br />

Example for a station selection file 18-OCT-03 17:18<br />

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

Station name<br />

****************<br />

AUCK 50209M001<br />

FAIR 40408M001<br />

OHIG 66008M001<br />

THU1 43001M001<br />

WTZR 14201M010<br />

Figure 22.39: Station selection (FIX) file.<br />

Content: Selection list for coordinate fixing, definition of no-translation condition, selection<br />

of reference clock, etc.<br />

Created by: User-defined. Assistance using ”Menu>Campaign>Edit station files>Station selection lists”.<br />

Files from oldvers may be converted to the new format using SIGO2N (”Menu<br />

>Conversion><strong>Version</strong> 4.2 to <strong>5.0</strong>>Sigma and fix files (old to new format)”).<br />

Used by: ADDNEQ2 (”Menu>Processing>Normal equation stacking”), CCRNXC (”Menu>RINEX<br />

>RINEX utilities>Combine/manipulate clock data”), <strong>GPS</strong>EST (”Menu>Processing>Parameter<br />

estimation”), HELMR1 ( menuHELMR1), SNX2STA (”Menu>Conversion>SINEX to station<br />

information”), and MKCLUS (”Menu>Service>Automated processing>Form clusters”).<br />

Example: Figure 22.39 and ${X}/DOC/EXAMPLE.FIX.<br />

22.8.13 Station Sigma File<br />

Type: ASCII<br />

Directory: Campaign-specific directory STA.<br />

Extension: SIG<br />

Content: Absolute and relative constraints for the estimation of coordinates and of<br />

site-specific troposphere parameters.<br />

Created by: User-defined. Program CCRNXC (”Menu>RINEX>RINEX utilities>Combine/manipulate<br />

clock data”) writing rms values of linear fits of clock values. Assistance using<br />

”Menu>Campaign>Edit station files>Station selection lists”. Files from <strong>Version</strong> 4.2 may be<br />

converted to the new format using SIGO2N (”Menu>Conversion><strong>Version</strong> 4.2 to <strong>5.0</strong><br />

>Sigma and fix files (old to new format)”).<br />

Used by: ADDNEQ2 (”Menu>Processing>Normal equation stacking”), <strong>GPS</strong>EST (”Menu>Processing<br />

>Parameter estimation”), and MKCLUS (”Menu>Service>Automated processing>Form<br />

clusters”).<br />

Example: Figure 22.40 and ${X}/DOC/EXAMPLE.SIG.<br />

The station sigma file has a generic format consisting of a header, a column containing the<br />

station name, and a number of columns containing sigma values. A sigma value of zero<br />

is interpreted as no sigma, i.e., no constraint. Programs accept only files containing the<br />

correct number of sigma values. The number of sigma values per station depends on the<br />

application:<br />

<strong>Bernese</strong> <strong>GPS</strong> <strong>Software</strong> <strong>Version</strong> <strong>5.0</strong> Page 527

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