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Bernese GPS Software Version 5.0 - Bernese GNSS Software

Bernese GPS Software Version 5.0 - Bernese GNSS Software

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16. Antenna Phase Center Offsets and Variations<br />

In order to allow for an efficient switch between different antenna phase center models in<br />

a BPE, it is recommended to use a BPE variable V PCV for the file extensions. You may<br />

rename the satellite information file in all program panels in BPE option directories from<br />

SATELLIT. to SATELLIT.$(PCV) and PHAS IGS.REL to PHAS ccc.$(PCV) (ccc may stand for the<br />

identifier for your institution) using program CHNGEN (”Menu>Configure>Change general options”).<br />

In the last section of the PCFs you may then define the variable V PCV variable in the<br />

following way<br />

#<br />

VARIABLE DESCRIPTION DEFAULT<br />

8******* 40************************************** 16**************<br />

...<br />

V_PCV <strong>GNSS</strong> PCV MODEL I05<br />

...<br />

#<br />

# DO NOT USE V_D, V_J, V_M, V_Y VARIABLES!<br />

#<br />

using either an ASCII editor or ”Menu>BPE>Edit process control file (PCF)”, panel “BPE Server Variables”.<br />

We refer to Section 19.5.4 for more information on BPE variables and their usage.<br />

16.2.6 Antenna Phase Center Model Name for SINEX<br />

The model name (”IGS 01” for relative files or ”IGS05 wwww” for absolute files) is expected<br />

to be included in the title line of the output <strong>Bernese</strong> phase center eccentricity file. This<br />

is done automatically if the ANTEX converter (PHCCNV, ”Menu>Conversion>ANTEX to <strong>Bernese</strong><br />

format”, description in Section 16.3) is used to create or update this file.<br />

Program ADDNEQ2 reads the title line if an input <strong>Bernese</strong> “Phase center variations” file is<br />

specified in panel “ADDNEQ2 1.1: General Files” and if an output SINEX file shall be written.<br />

It extracts the antenna phase center model name from the characters 13-22, if characters<br />

1-10 of the title string are ”MODEL NAME”,<br />

1 2 3 4 5 6 7 8<br />

12345678901234567890123456789012345678901234567890123456789012345678901234567890<br />

MODEL NAME: IGS_01 23-JUN-06 12:45<br />

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

and includes it in the SINEX section SITE/<strong>GPS</strong> PHASE CENTER. Be sure to select the<br />

same file in program ADDNEQ2 as you used in program <strong>GPS</strong>EST.<br />

The SINEX result file contains the generic entry ----- for the serial number of all antennas<br />

in theSITE/ANTENNA block. For a clear conversion from the 20-character input in the header<br />

of the RINEX observation files via the 6-digit integer internally used in the <strong>Bernese</strong> <strong>GPS</strong><br />

<strong>Software</strong> to the 5-character string in the SINEX file a further software implementation will<br />

be necessary.<br />

Page 334 AIUB

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