Unpublished conference/Abstract (Scientific congresses and symposiums)
Relative positioning with Galileo E5 AltBOC code measurements
Deprez, Cécile; Warnant, René
2016The CLGE Students' Contest 2016
 

Files


Full Text
CLGEContestCecileDeprezGalileoEGNOSCopernicus.pdf
Author preprint (413.87 kB)
Download
Annexes
PrésentationCLGE.pdf
Publisher postprint (411.23 kB)
Download

All documents in ORBi are protected by a user license.

Send to



Details



Keywords :
Galileo; E5; AltBOC; Positioning; GNSS; GPS; Relative; Double Difference
Abstract :
[en] For over a decade, Europe has started to develop its own Global Navigation Satellite System (GNSS). Initiated in 1999, the Galileo project finally materialized a few years ago, recently experiencing a prompt expansion with the launch, in 2015 and 2016, of 8 satellites belonging to the Full Operational Capability (FOC) generation. Broadcasting new signals, with new modulations, the first studies addressing this system reveal promising level of precisions on both code and carrier phase observables. Still in test phase but already available for measurements, this recent system can be used to estimate positions. Among the new signals developed by the Galileo program, the Galileo E5 AltBOC, also known as Galileo E5a+b or Galileo E5, reveals great characteristics. Thanks to its particular AltBOC modulation, it allows more precise code and phase observations besides being less affected by multipath. These innovative performances should lead to more precise position estimations than with any other signal presently in use. In this master thesis, we compared the positions estimated with GPS and Galileo on their different frequencies (L1, L2, L5 for GPS and E1, E5a, E5b and E5 AltBOC for Galileo). We combined the observations made by the receivers belonging to the University of Liège (2 Trimble NetR9 receivers, 1 Septentrio PolaRxS receiver and one Septentrio PolaRx4 receiver) in double differences (DD) combinations using various configurations (zero baseline (ZB), short baseline (SB) and medium baseline (MB)). It turns out that Galileo E5 AltBOC outperforms all other signal in terms of observation precision (estimated in a DD SB configuration in order to remove atmospheric and clock error sources affecting the signal). Regarding the precision obtained on the computed positions, we could reach a few decimetres with Galileo E5 code pseudoranges on baselines up to 25 kilometres.
Disciplines :
Earth sciences & physical geography
Author, co-author :
Deprez, Cécile ;  Université de Liège > Département de géographie > Unité de Géomatique - Géodésie et GNSS
Warnant, René  ;  Université de Liège > Département de géographie > Unité de Géomatique - Géodésie et GNSS
Language :
English
Title :
Relative positioning with Galileo E5 AltBOC code measurements
Alternative titles :
[en] Relative positioning with Galileo E5 AltBOC code measurements
Publication date :
11 October 2016
Event name :
The CLGE Students' Contest 2016
Event date :
11-10-2016
Audience :
International
Available on ORBi :
since 29 November 2016

Statistics


Number of views
76 (8 by ULiège)
Number of downloads
122 (2 by ULiège)

Bibliography


Similar publications



Contact ORBi