Poster (Scientific congresses, symposiums and conference proceedings)
On the Impact of Multi-GNSS Solutions on Satellite Products and Positioning
Abraha, Kibrom Ebuy; Teferle, Felix Norman; Hunegnaw, Addisu et al.
2016American Geophysical Union (AGU) Fall Meeting 2016
 

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Keywords :
GNSS; Coordinate time series; Periodic signals
Abstract :
[en] In Global Navigation Satellite System (GNSS) coordinate time series unrecognised errors and un-modelled (periodic) effects may bias non-linear motions induced by geophysical signals. Those spurious signals can be caused either due to un-modelled long periodic signals or propagation of sub-daily signals into the time series. Understanding and mitigating these errors is vital to reduce biases and on revealing subtle geophysical signals. Mostly, the spurious signals are caused by unmodelled errors which occur due to the draconitic years, satellite ground repeats and absorption into resonant GNSS orbits. Accordingly, different features can be observed in GNSS-derived products from different single-GNSS or combined-GNSS solutions. To assess the nature of periodic signals on station coordinate time series Precise Point Positioning (PPP) solutions are generated using the Bernese GNSS Software V5.2. The solutions consider only GPS, only GLONASS or combined GPS+GLONASS (GNSS) observations. We assess the periodic signals of station coordinates computed using the combined International GNSS Service (IGS) and four of its Analysis Centers (ACs) products.
Research center :
Institute of Geodesy and Geophysics, University of Luxembourg, Luxembourg; High Performance Computing - ULHPC
Disciplines :
Earth sciences & physical geography
Author, co-author :
Abraha, Kibrom Ebuy ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit
Teferle, Felix Norman ;  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
Dach, Rolf;  Astronomical Institute, University of Bern
External co-authors :
yes
Language :
English
Title :
On the Impact of Multi-GNSS Solutions on Satellite Products and Positioning
Publication date :
12 December 2016
Event name :
American Geophysical Union (AGU) Fall Meeting 2016
Event organizer :
American Geophysical Union
Event place :
San Francisco, United States
Event date :
From 12-12-2016 to 16-12-2016
FnR Project :
FNR6835562 - Multi-gnss Benefits To Long-term Monitoring Applications In The Geosciences, 2013 (01/05/2014-30/04/2018) - Kibrom Ebuy Abraha
Funders :
FNR - Fonds National de la Recherche [LU]
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since 07 December 2016

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