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Performance Assessment of Multi-GNSS Precise Velocity and Acceleration Determination over Antarctica

Published online by Cambridge University Press:  26 September 2018

Min Li ,
Karl-Hans Neumayer ,
Frank Flechtner ,
Biao Lu ,
Christoph Förste ,
Kaifei He Open the ORCID record for Kaifei He [Opens in a new window]  and
Tianhe Xu
Min Li*
Affiliation:
(GFZ German Research Centre for Geosciences, Telegrafenberg, 14473 Potsdam, Germany) (Department of Geodesy and Geoinformation Science, Technical University of Berlin, 10623 Berlin, Germany)
Karl-Hans Neumayer
Affiliation:
(GFZ German Research Centre for Geosciences, Telegrafenberg, 14473 Potsdam, Germany)
Frank Flechtner
Affiliation:
(GFZ German Research Centre for Geosciences, Telegrafenberg, 14473 Potsdam, Germany) (Department of Geodesy and Geoinformation Science, Technical University of Berlin, 10623 Berlin, Germany)
Biao Lu
Affiliation:
(GFZ German Research Centre for Geosciences, Telegrafenberg, 14473 Potsdam, Germany) (Department of Geodesy and Geoinformation Science, Technical University of Berlin, 10623 Berlin, Germany) (School of Geodesy and Geomatics, Wuhan University, 430072 Wuhan, PR China)
Christoph Förste
Affiliation:
(GFZ German Research Centre for Geosciences, Telegrafenberg, 14473 Potsdam, Germany)
Kaifei He
Affiliation:
(School of Geosciences, China University of Petroleum (East China), 266580 Qingdao, China)
Tianhe Xu
Affiliation:
(Institute of Space Science, Shandong University, 264209 Weihai, China)
*
(E-mail: minli@gfz-potsdam.de)
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Abstract

A conventional Differential GPS (DGPS) techniques-based velocity and acceleration method (named here as ‘DVA’) may be difficult to implement in the Antarctic as there is a sparse distribution of reference stations over Antarctica. Thus, in order to overcome the baseline limitations and to obtain highly accurate and reliable velocity and acceleration estimates for airborne gravimetry, a network-based velocity and acceleration determination approach (named here as ‘NVA’), which introduces a wide network of stations and is independent of precise clock information, is applied. Here its performance for velocity and acceleration determination is fully exploited by using Global Positioning System (GPS), GLONASS, Galileo and BeiDou observations. Additionally, a standalone receiver-based method named ‘SVA’, which requires precise clock information, is also implemented for comparison. During static tests and a flight experiment over Antarctica, it was found that the NVA method yields more robust results than the SVA and DVA methods when applied to a wide area network. Moreover, the addition of GLONASS, Galileo and BeiDou systems can increase the accuracy of velocity and acceleration estimates by 39% and 43% with NVA compared to a GPS-only solution.

Keywords

Network solutionStandalone receiverDGPSAntarcticaGPSGLONASSGalileoBeiDou
Type
Research Article
Information
The Journal of Navigation , Volume 72 , Issue 1 , January 2019 , pp. 1 - 18
Copyright
Copyright © The Royal Institute of Navigation 2018 

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