Reference : An Efficient Dual and Triple Frequency Preprocessing Method for GALILEO and GPS Signals
Scientific congresses and symposiums : Paper published in a book
Physical, chemical, mathematical & earth Sciences : Earth sciences & physical geography
http://hdl.handle.net/2268/99348
An Efficient Dual and Triple Frequency Preprocessing Method for GALILEO and GPS Signals
English
Lonchay, Matthieu mailto [Université de Liège - ULg > Département de géographie > Unité de Géomatique - Géodésie et GNSS >]
Bidaine, Benoît mailto [Université de Liège - ULg > Département de géographie > Unité de Géomatique - Géodésie et GNSS >]
Warnant, René mailto [Université de Liège - ULg > Département de géographie > Unité de Géomatique - Géodésie et GNSS >]
2-Sep-2011
3rd International Colloquium – Scientific and Fundamentals Aspects of the GALILEO Programme
No
No
International
3rd International Colloquium – Scientific and Fundamentals Aspects of the GALILEO Programme
31 August 2011 - 02 September 2011
European Space Agency (ESA)
DTU Space
Danish National Space Institute
Technical University of Denmark
Copenhagen
Denmark
[en] GNSS ; Galileo ; GPS ; preprocessing ; dual frequency ; triple frequency
[fr] Géodésie et GNSS
[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.
Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS
Space Weather And Navigation Systems (SWANS)
Researchers ; Professionals
http://hdl.handle.net/2268/99348

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