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Bernese GPS Software Version 5.0 - Bernese GNSS Software

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22.10.2 Normal Equation Files<br />

22.10 Miscellaneous Files<br />

Type: Binary<br />

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

Extension: NQ0<br />

Content: Normal equations and important a priori information.<br />

Created by: <strong>GPS</strong>EST (”Menu>Processing>Parameter estimation”), ADDNEQ2 (”Menu>Processing<br />

>Normal equation stacking”), SNX2NQ0 (”Menu>Conversion>SINEX to normal equations”),<br />

and NEQ2NQ0 (”Menu>Conversion><strong>Version</strong> 4.2 to <strong>5.0</strong>>Normal equations (old to new format)”).<br />

Used by: ADDNEQ2 to combine sequential solutions.<br />

Example: EXAMPLE.FN0 in ${X}/DOC is an example for an ASCII image of a normal<br />

equation file.<br />

Normal equation files contain important information concerning the parameter characterization,<br />

the a priori values used, as well as the normal equations including solution vector<br />

computed by programs <strong>GPS</strong>EST and ADDNEQ2. For more information on normal equations<br />

we refer to Chapter 9.<br />

To transform binary normal equation files into ASCII files and vice versa (necessary if<br />

you have to change the computer platform), you can use the program NEQ2ASC in ”Menu<br />

>Conversion>Normal equations (binary/ASCII)”. If you want to use old normal equation files from the<br />

old ADDNEQ program (extension NEQ) you have to convert them into the new format with<br />

NEQ2NQ0 (”Menu>Conversion><strong>Version</strong> 4.2 to <strong>5.0</strong>>Normal equations (old to new format)”), see Section 24.2.3.<br />

NQ0 files from ADDNEQ2 in <strong>Version</strong> 4.2 can be read by <strong>Version</strong> <strong>5.0</strong> programs.<br />

22.10.3 SINEX File<br />

Type: ASCII<br />

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

Extension: SNX<br />

Content: Coordinates, velocities, and ERPs in the <strong>Software</strong> INdependent EXchange<br />

format (SINEX) <strong>Version</strong> 2.02.<br />

Created by: ADDNEQ2 (”Menu>Processing>Normal equation stacking”).<br />

Used by: SNX2NQ0 (”Menu>Conversion>SINEX to normal equations”), SNX2STA (”Menu>Conversion<br />

>SINEX to station information”). IGS Global Network Associated Analysis Centers<br />

(GNAACs) to combine global solutions with regional <strong>GNSS</strong> solutions. Also<br />

the official format for the coordinate and velocity submissions to IERS.<br />

Example: Example files are available in the anonymous CODE ftp area (see Section 4.12;<br />

weekly European combined solutions as well as the weekly global solutions)<br />

or at CDDIS for different other IGS Analysis Centers.<br />

See Section 4.6 for more details and [Kouba et al., 1996] or http://www.iers.<br />

org/IERS/EN/Organization/AnalysisCoordinator/SinexFormat/sinex.html for a format<br />

definition.<br />

General information is included in the SINEX files with help of the general file<br />

${X}/GEN/SINEX.(see Section 22.4.14).<br />

<strong>Bernese</strong> <strong>GPS</strong> <strong>Software</strong> <strong>Version</strong> <strong>5.0</strong> Page 541

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