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Multi-GNSS Benefits to Real-Time and Long-Term Monitoring Applications
Teferle, Felix Norman; Ding, Wenwu; Abraha, Kibrom Ebuy et al.
2016IAG/CPGPS International Conference on GNSS+ (ICG+ 2016) Advances, Opportunities and Challenges
 

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Keywords :
Global Navigation Satellite Systems; Real-Time Monitoring; Long-Term Monitoring; multi-GNSS; Zenith Total Delay; Signal Obstructions
Abstract :
[en] The processing of observations from multiple Global Navigation Satellite Systems (GNSSs) has been shown to benefit high-precision applications on time scales from real-time (RT) to long-term monitoring. While the improvements for RT applications have been widely documented and stem largely from the availability of additional observations, often with better satellite geometry, especially in obstructed environments, the improvements to long-term monitoring applications are less well understood. In this evaluation two distinct examples from recent studies carried out at the University of Luxembourg will be presented. Firstly, we will discuss RT estimates of Zenith Tropospheric Delay (ZTD) obtained using integer ambiguity fixed Precise Point Positioning (PPP) solutions based on GPS, GLONASS, Galileo and BDS observations. This study revealed that the largest improvement in the ZTD estimates stemmed from the additional GNSS observations to those of GPS. The fixing of integer ambiguities (GPS only) had less of an effect. Secondly, we will discuss long-term PPP solutions using GPS and GLONASS observations in combination with various satellite orbit and clock products from the International GNSS Service and its analysis centres. Here of particular interest are the constellation specific draconitic signals and the impact of signal obstructions on the long-term position time series.
Research center :
ULHPC - University of Luxembourg: High Performance Computing
University of Luxembourg: Research Unit of Engineering Sciences - RUES
Disciplines :
Earth sciences & physical geography
Author, co-author :
Teferle, Felix Norman ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit
Ding, Wenwu;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit
Abraha, Kibrom Ebuy ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit
Hunegnaw, Addisu  ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit
Laurichesse, Denis;  Centre National de l'Etudes Spatiales (CNES)
Dach, Rolf;  Astronomical Institute University of Bern
Kazmierski, Kamil;  Wroclaw University of Environmental and Life Sciences
Yunbin, Yuan;  State Key Laboratory of Geodesy and Earth’s Dynamics, Wuhan
External co-authors :
yes
Language :
English
Title :
Multi-GNSS Benefits to Real-Time and Long-Term Monitoring Applications
Publication date :
30 July 2016
Event name :
IAG/CPGPS International Conference on GNSS+ (ICG+ 2016) Advances, Opportunities and Challenges
Event organizer :
Shanghai Observatory
Event place :
Shanghai, China
Event date :
27-07-2016 to 30-07-2016
By request :
Yes
Audience :
International
Focus Area :
Computational Sciences
FnR Project :
FNR6823109 - A Multi-gnss Real-time Precise Point Positioning System And Its Application In Luxembourg And The Greater Region, 2013 (01/06/2014-31/05/2016) - Wenwu Ding
Name of the research project :
R-AGR-0376 - IRP15 - SGSL (20150501-20170430) - TEFERLE Felix Norman
Funders :
University of Luxembourg - UL
Fonds National de la Recherche - FnR (Reference No. 6823109)
Fonds National de la Recherche - FnR (Reference No. 6835562)
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since 22 August 2016

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