Multi-frequency multi-GNSS receiver antenna calibration at IfE

concept - calibration results - validation

authored by
Johannes Kröger, Tobias Kersten, Yannick Breva, Steffen Schön

Multi-frequency and multi-constellation GNSS have the potential to boost the overall performance of GNSS-based positioning, navigation and timing. This has an impact on the realisation of global reference frames, geophysical monitoring applications as well as enabling new applications. To this end, all error sources should be adequately corrected for. However, currently multi-frequency multi-GNSS receiver antenna calibration values are still missing.
In this paper, the newly developed multi-frequency multi-GNSS calibration process at Institut für Erdmessung (IfE), Leibniz University Hannover, is presented. The basic concept and the assumptions for the antenna calibration are described. Resulting phase centre corrections (PCC) for GPS and Galileo for typical antennas are presented. We show that the repeatability of the estimated patterns are almost better than 2 mm in terms of maximum deviation and that the used tracking strategies by the receivers have marginal impact on the patterns, at maximum 1.2 mm for the studied receiver-antenna combinations. Furthermore, applying phase centre corrections for multi-frequency multiGNSS carrier phase observations reduces significantly (up to 37 %) the antenna related biases as validated on short baselines. Moreover, a validation in the coordinate domain shows that with IfE PCC a short baseline can be computed
with high accuracy: the topocentric coordinate differences to the known baseline are in most cases smaller than 1 mm for the horizontal components and smaller than 2.2 mm in vertical.

Institute of Geodesy
Advances in Space Research
No. of pages
Publication date
Publication status
Peer reviewed
ASJC Scopus subject areas
Astronomy and Astrophysics, Aerospace Engineering, Geophysics, Earth and Planetary Sciences(all), Space and Planetary Science, Atmospheric Science
Research Area (based on ÖFOS 2012)
Geodesy, Satellite geodesy
Electronic version(s) (Access: Open)

Details in the research portal "Research@Leibniz University"