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Import and Export of Data

GSSF provides several internal and external interfaces that are of interest for the user to exchange the related algorithms or ingest external data (RINEX, TROPEX, IONEX, IGS SP3, IGS ERP, TLES, YUMA, JGM3, JPL DE405). Examples of where this is used include initialisation of constellations (including actual GPS position data) as well as replacing environmental models with corresponding external data (Ionosphere/Troposphere).

The Export feature allows the User to ingest data produce by GSSF into other tools for further analysis (RINEX/SP3). GSSF also supports the feature of exporting simulation output data and analysis to ASCII files, i.e "Comma Separated Values" (CSV) files, which can be read by Microsoft Excel.

GSSF provides a built-in Exporter Catalogue, offering maximum flexibility for incorporating custom made exporters into GSSF.

Image Formats: GSSF is fully compatible in writing the following graphic file formats. The main types of graphic files that are supported by GSSF are JPG, BMP, GIF and TIFF.

Constellation File Formats: GSSF can read the following file formats to set the constellation parameters for the space segment and this is useful to significantly accelerate the prolonged process of entering the constellation details manually. The types of constellation files supported are IGS SP3, YUMA, RINEX.

Importing Data from an XML File: GSSF uses XML Datasets for saving Simulation results. This XML Dataset can be used to analyse and visualise any pre-recorded results.

Figure: Import and Export of Data in GSSF