On the effect of antenna calibration errors on geodetic estimates

Investigation on zero and double difference approaches

authored by: Tobias Kersten, Grzegorz Krzan, Karol Dawidowicz, Steffen Schön
Abstract: This paper addresses an approach to assess the impact of phase centre correction errors of selected receiving antennas in the Polish ASG-Eupos network using GNSS processing strategies such as zero differencing and double differencing. The objective is to characterise the nature of the error patterns of GNSS receiver antennas and to understand their impact on GNSS derived integrated water vapour and geodetic estimates. A semi-analytical approach for characterising variants of error patterns is applied. Differences of up to +12 mm between type-mean and individual receiver antenna calibrations of current antenna models on the ionosphere-free linear combination are identified for repeatable pattern deformations. The analyses show that repeatable effects on tropospheric estimates of up to 8 mm – which corresponds to approx. 1.2 kg/m ² – occur even though only 5 mm variations were applied to the pattern. The results of our analysis show a strong correlation with the type of error patterns that affect the estimates differently. Due to the complex relationship between datum settings, processing strategy, baseline orientation and satellite sky distribution, artefacts in GNSS processing models and their effects must to be modelled in order to achieve a better understanding in the context of GNSS networks and GNSS meteorology.
Organisation(s): Institute of Geodesy
External Organisation(s): University of Warmia and Mazury
Type: Contribution to book/anthology
Volume: 154
Pages: 321 - 332
No. of pages: 12
Publication date: 19.07.2022
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Electrical and Electronic Engineering, Computers in Earth Sciences, Geophysics
Research Area (based on ÖFOS 2012): Microwave engineering, Communication engineering, Satellite geodesy
Electronic version(s): https://doi.org/10.1007/1345_2022_153 (Access: Open)
: Details in the research portal "Research@Leibniz University"

BibTeX

@inbook{51cb1fa892414db486c9accf01e0b8f9,
title = "On the effect of antenna calibration errors on geodetic estimates: Investigation on zero and double difference approaches",
abstract = "This paper addresses an approach to assess the impact of phase centre correction errors of selected receiving antennas in the Polish ASG-Eupos network using GNSS processing strategies such as zero differencing and double differencing. The objective is to characterise the nature of the error patterns of GNSS receiver antennas and to understand their impact on GNSS derived integrated water vapour and geodetic estimates. A semi-analytical approach for characterising variants of error patterns is applied. Differences of up to +12 mm between type-mean and individual receiver antenna calibrations of current antenna models on the ionosphere-free linear combination are identified for repeatable pattern deformations. The analyses show that repeatable effects on tropospheric estimates of up to 8 mm – which corresponds to approx. 1.2 kg/m 2 – occur even though only 5 mm variations were applied to the pattern. The results of our analysis show a strong correlation with the type of error patterns that affect the estimates differently. Due to the complex relationship between datum settings, processing strategy, baseline orientation and satellite sky distribution, artefacts in GNSS processing models and their effects must to be modelled in order to achieve a better understanding in the context of GNSS networks and GNSS meteorology.",
keywords = "phase centre corrections (PCC), generic patterns, double difference, zenith tropospheric delays, coordinates, Double difference (DD), Phase centre corrections (PCC), Zenith tropospheric delays (ZTD), Coordinates, Zero difference (ZD), Generic patterns",
author = "Tobias Kersten and Grzegorz Krzan and Karol Dawidowicz and Steffen Sch{\"o}n",
note = "Funding Information: The authors grateful acknowledge the Polish ASG-EUPOS network providers for the ANTEX antenna and RINEX observation files from their network. We also thank the Centre of Orbit Determination in Europe (CODE) and the European Space Operations Centre (ESOC) at ESA, which provide high accurate GNSS products.",
year = "2022",
month = jul,
day = "19",
doi = "10.1007/1345_2022_153",
language = "English",
isbn = "9783031295065",
volume = "154",
series = "International Association of Geodesy Symposia",
publisher = "Springer Nature Switzerland AG",
pages = "321 -- 332",
editor = "Freymueller, {Jeffrey T.} and Laura S{\'a}nchez",
booktitle = "Geodesy for a Sustainable Earth",
address = "Switzerland",
}