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International GNSS Service (IGS)IGS server (current file)Typmittel, Antenna Exchange Format (ATX)
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Geo++ GmbHPCV data baseindividuell, Typmittel, Antenna Exchange Format (ATX) und Geo++ (ANT)
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National Geodetic Service (NGS)NGS data baseTypmittel, Antenna Exchange Format (ATX)
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European Permanent Network (EPN)EPN FTP server (current file)individuell, Typmittel, Antenna Exchange Format (ATX)






The methodic technical progress of calibration procedures concentrates increasingly not only on geodetic precision antenna and precision receivers, but also on mass-market products, which are integrated into a large number of navigation sensors. A significantly increased efficiency of individual GNSS-instruments can be achieved through consistent calibration.
The group concentrates on the expansion and development of robotic techniques for the calibration of GNSS-receiving antennas for new GNSS-signals and frequencies and the estimation of antenna characteristics on geodetic parameter (position, time, troposphere).
Topics of the Working Group
- Determination of Antenna Phase Center Corrections (PCC) and Improvement of the GNSS PCC Modelling
- Determination and Analysis of the Antenna's Near Field Effect on GNSS Processing
- Determination of Code Phase Variations (CPV, also known as Group Delay Variations - GDV)
The Institute of Geodesy cooperates with the International GNSS Service (IGS) as a recognized institution for the calibration of GNSS-receiver antennas. Close collaboration with internationally recognized calibration institutions is maintained as well (Geo++, SenStadtUm Berlin and Bezirksregierung Köln / Universität Bonn)
The institute also works with international and national working groups specializing in the realisation of international standards and regulations for precise GNSS-based navigation and positioning.
Contact


30167 Hannover

