ORBi: Lonchay Matthieu - An Efficient Dual and Triple Frequency Preprocessing Method for GALILEO and GPS Signals

Reference : An Efficient Dual and Triple Frequency Preprocessing Method for GALILEO and GPS Signals


	Document type :	Scientific congresses and symposiums : Paper published in a book
	Discipline(s) :	Physical, chemical, mathematical & earth Sciences : Earth sciences & physical geography
	To cite this reference:	http://hdl.handle.net/2268/99348

Title :	An Efficient Dual and Triple Frequency Preprocessing Method for GALILEO and GPS Signals
Language :	English
Author, co-author :	Lonchay, Matthieu [Université de Liège - ULg > Département de géographie > Unité de Géomatique - Géodésie et GNSS >]
	Bidaine, Benoît [Université de Liège - ULg > Département de géographie > Unité de Géomatique - Géodésie et GNSS >]
	Warnant, René [Université de Liège - ULg > Département de géographie > Unité de Géomatique - Géodésie et GNSS >]
Publication date :	Sep-2011
Main document title :	3rd International Colloquium – Scientific and Fundamentals Aspects of the GALILEO Programme
On invitation :	No
Audience :	International
Event name :	3rd International Colloquium – Scientific and Fundamentals Aspects of the GALILEO Programme
Event date :	du 31 août 2011 au 2 septembre 2011
Event organizer :	European Space Agency (ESA)
	DTU Space
	Danish National Space Institute
	Technical University of Denmark
Event place (city) :	Copenhagen
Event country :	Denmark
Keywords :	[en] GNSS ; Galileo ; GPS ; preprocessing ; dual frequency ; triple frequency
	[fr] Géodésie et GNSS
Abstract :	[en] Data preprocessing is a mandatory stage for most of GNSS applications. In the frame of space weather and precise point positioning applications, the Geomatics Unit of the University of Liège has purchased two Septentrio PolaRx3eG receivers which allow tracking GPS L1/L5 and Galileo E1/E5a signals. In order to fully exploit these new data, we developed a preprocessing method extending existing techniques. Our preprocessing method consists of three consecutive steps. The first step is devoted to the compensation of receiver clock slips affecting code pseudorange and carrier-phase measurements. The second step covers cycle slips detection and the third step assesses data quality in terms of noise essentially affecting code pseudorange measurements. This preprocessing method was initially developed for GPS L1/L5 and Galileo E1/E5a dual frequency data but finally enhanced to also preprocess triple frequency data from first operational Galileo satellites as soon as data are available. The developed method already showed promising results.
Funders :	Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS
Name of the research project :	Space Weather And Navigation Systems (SWANS)
Target :	Researchers ; Professionals
Permalink :	http://hdl.handle.net/2268/99348

File(s) associated to this reference

Fulltext file(s):

	File	Commentary	Version	Size	Access
Open access	Poster_2239228lonchay.pdf		Publisher postprint	382.87 kB	View/Open
Open access	Paper_2239228lonchay.pdf		Publisher postprint	132.35 kB	View/Open

All documents in ORBi are protected by a user license.

Dspace v1.5