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DIGISONDE-4D
SYSTEM MANUAL
VERSION 1.2.11
SECTION 5 - SYSTEM SOFTWARE 5-19
CHAPTER 4
POST-PROCESSING SOFTWARE
POST-PROCESSING AT DATA PLATFORM
5:31. The Digisonde-4D sounder comes with pre-installed suite of software responsible for generation of de-
rived data products. The list of installed post-processing software applications is given in Table 5-3. Annex B
details data format for all source and derived data products of Digisonde-4D.
Table 5-3: Post-Processing Software Applications Running on DATA Platform
Artist.ini, xxx.UDD, xxx.RSL
Calculation of drift velocity
Calculation of directogram
Calculation of ionospheric tilt
Ionogram image production
Daily Directogram image production
Daily drift plot production
5:32. Most of the post-processing components read Station ID number from the input file to acquire station
constants from the appropriate Station UDD file located in /digisonde/dispatch/UDD. The Station UDD file is
an ASCII text file containing setup parameters which select optional features of the sounder software. Each
line in the file may be one of the following entries:
PARAMETER LINE (preceded with an asterisk * in column 1)
The asterisk is immediately followed by a 3-digit parameter number and its body enclosed within < >).
EXTERNAL COMMENT LINE (no special character in column 1)
Contains instructions regarding the following parameter line.
INTERNAL COMMENT LINE (preceded with a percent sign % in column 1)
A comment line invisible to software that reads the file.
5:33. Details of the file format, including the site specific and system specific setup variables, are provided in
Table 5-4. For additional information on the antenna array definitions please refer to Section 2.
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