GNSS data analysis und software development

This research area includes activities within the IGS (International GNSS Service), development and improvement of GNSS data analysis software and contributions to the European navigation satellite system Galileo. GFZ contributes to IGS with currently 23 globally distributed ground stations and by hosting an operational Data and Analysis Centre (AC). GFZ is also involved in the generation and maintenance of the International Reference Frame (ITRF) and to the provision of precise satellite orbits, clocks and Earth rotation parameters. From 2003 to 2007, the Analysis Coordination (ACC) was the task of GFZ and the official combined satellite orbit and clock products were generated here. GFZ has been developing GNSS analysis software for decades and is maintaining the software according to the latest standards and developments. GFZ is also very active in developing new algorithms in order to improve the quality of the IGS products and to enhance the capability of GNSS data processing (see Highlights). Since 2007, GFZ has been developing its GNSS real-time software package, EPOS-RT. The software is designed not only to run in network mode which is now used for geohazard monitoring (earthquake, tsunami, volcano, landslide), but also to be able to estimate orbit and clock corrections to provide services to users with single-frequency receivers in precise point positioning mode (IGS Real-Time Pilot Project). The above-mentioned functions can be demonstrated now and further improvement on the robustness and accuracy of the software is in progress. The Galileo Geodetic Service Provider (GGSP) Prototype was developed to support the In-Orbit-Validation for the Galileo System in 2011, and will be offered to be part of the final Galileo system.

links to the projects under this topic:
- IGS
- G-SEIS
- GGSP
- GGSP-HAPS