Multi-frequency multi-GNSS receiver antenna calibration at IfE

concept - calibration results - validation

authored by: Johannes Kröger, Tobias Kersten, Yannick Breva, Steffen Schön
Abstract: 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.
Organisation(s): Institute of Geodesy
Type: Article
Journal: Advances in Space Research
Volume: 68
Pages: 4932-4947
No. of pages: 16
ISSN: 0273-1177
Publication date: 15.12.2021
Publication status: Published
Peer reviewed: Yes
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): https://doi.org/10.1016/j.asr.2021.01.029 (Access: Open)
: Details in the research portal "Research@Leibniz University"

BibTeX

@article{19c4f5a25f00400685245407f3f10384,
title = "Multi-frequency multi-GNSS receiver antenna calibration at IfE: concept - calibration results - validation",
abstract = "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 f{\"u}r 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 computedwith 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.",
keywords = "Absolute antenna calibration, GNSS receiver antennas, Multi-GNSS, Phase centre corrections",
author = "Johannes Kr{\"o}ger and Tobias Kersten and Yannick Breva and Steffen Sch{\"o}n",
note = "Funding Information: We thank the anonymous reviewers for their hints, valuable remarks and discussions that improved the manuscript.",
year = "2021",
month = dec,
day = "15",
doi = "10.1016/j.asr.2021.01.029",
language = "English",
volume = "68",
pages = "4932--4947",
journal = "Advances in Space Research",
issn = "0273-1177",
publisher = "Elsevier Ltd.",
number = "12",
}