Reference : Evaluation of a regional real-time precise positioning system based on GPS/BeiDou obs...
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
Computational Sciences
http://hdl.handle.net/10993/32927
Evaluation of a regional real-time precise positioning system based on GPS/BeiDou observations in Australia
English
Ding, Wenwu [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit > ; State Key Laboratory of Geodesy and Earth’s Dynamics, Wuhan, China]
Tan, Bingfeng [State Key Laboratory of Geodesy and Earth’s Dynamics, Wuhan, China]
Chen, Yongchang [University of the Chinese Academy of Science, Beijing, China]
Teferle, Felix Norman mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit >]
Yuan, Yunbin [State Key Laboratory of Geodesy and Earth’s Dynamics, Wuhan, China]
2018
Advances in Space Research
Pergamon Press
Yes (verified by ORBilu)
International
0273-1177
Oxford
United Kingdom
[en] Global Navigation Satellite System ; Precise Point Positioning ; Real-Time ; Satellite clock offset
[en] The performance of real-time (RT) precise positioning can be improved by utilizing observations from multiple Global Navigation Satellite Systems (GNSS) instead of one particular system. Since the end of 2012, BeiDou, independently established by China, began to provide operational services for users in the Asia-Pacific regions. In this study, an regional RT precise positioning system in Australia is developed to evaluate the performance of GPS/BeiDou observations in providing high precision positioning services for users. Fixing three hourly updated satellite orbits, RT correction messages are generated and broadcasted by processing RT observation/navigation data streams from AUSCORS at the server side. At the user side, RT PPP is realized by processing RT data streams and the RT correction messages received. RT clock offsets, for which the accuracy reached 0.07 and 0.25 ns for GPS and BeiDou, respectively, can be determined. Based on these corrections, an accuracy of 12.2, 30.0 and 45.6 cm in the North, East and Up directions was achieved for the BeiDou-only solution after 30 minutes while the GPS-only solution reached 5.1, 15.3 and 15.5 cm for the same components at the same time. A further improvement of 43.7, 36.9 and 45.0 percent in the three directions, respectively, was achieved for the combined GPS/BeiDou solution. After the initialization process, the North, East and Up positioning accuracies were 5.2, 8.1 and 17.8 cm, respectively, for the BeiDou-only solution, while 1.5, 3.0, and 4.7 cm for the GPS-only solution. However, we only noticed a 20.9% improvement in the East direction was obtained for the GPS/BeiDou solution, while no improvements in the other directions were detected. It is expected that such improvements may become bigger with the increasing accuracy of the BeiDou-only solution.
Fonds National de la Recherche - FnR
Researchers ; Professionals ; Students
http://hdl.handle.net/10993/32927
FnR ; FNR6823109 > Wenwu Ding > POSILUX > A Multi-Gnss Real-Time Precise Point Positioning System And Its Application In Luxembourg And The Greater Region > 01/06/2014 > 31/05/2016 > 2013

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