References of "Spits, Justine"
     in
Bookmark and Share    
Full Text
See detailMonitoring the ionospheric activity using GNSS. From dual frequency GPS to multi-constellation multi-frequency GNSS
Warnant, René ULg; Bidaine, Benoît; Lonchay, Matthieu ULg et al

Scientific conference (2012, June 20)

Detailed reference viewed: 51 (2 ULg)
See detailThe added value of triple frequency GNSS for TEC reconstruction
Warnant, René ULg; Spits, Justine

Conference (2012, May)

Detailed reference viewed: 35 (3 ULg)
Full Text
See detailEnhancement of Total Electron Content monitoring using triple frequency GNSS data
Spits, Justine; Warnant, René ULg

Conference (2011, August 31)

Detailed reference viewed: 38 (2 ULg)
Full Text
See detailOn the impact of ionospheric variability and disturbances on GNSS-based positioning applications
Stankov, Stanimir; Wautelet, Gilles ULg; Lejeune, Sandrine et al

in Geophysical Research Abstracts (2011, April), 13(ABS. No EGU2011-12067),

Detailed reference viewed: 32 (4 ULg)
Full Text
Peer Reviewed
See detailTotal Electron Content Monitoring using triple frequency GNSS: results with Giove-A/-B data
Spits, Justine; Warnant, René ULg

in Advances in Space Research (2011), 47

Detailed reference viewed: 61 (9 ULg)
Full Text
See detailThe RMI Space Weather and Navigation Systems (SWANS) project
Warnant, René ULg; Lejeune, Sandrine; Wautelet, Gilles ULg et al

Conference (2010, July)

Detailed reference viewed: 27 (1 ULg)
Peer Reviewed
See detailTEC reconstruction using dual frequency modernized GPS (L1/L5) and GALILEO (E1/E5A) measurements
Warnant, René ULg; Lonchay, Matthieu ULg; Spits, Justine et al

Conference (2010, June)

GPS dual frequency L1/L2 measurements have been used for many years to reconstruct the ionosphere Total Electron Content and to detect small-scale irregular structures in the ionospheric plasma. TEC is ... [more ▼]

GPS dual frequency L1/L2 measurements have been used for many years to reconstruct the ionosphere Total Electron Content and to detect small-scale irregular structures in the ionospheric plasma. TEC is usually computed by forming the geometry-free combination of L1/L2 phase measurements. Most of the existing techniques use the geometry-free combination of code measurements to solve the non-integer geometry-free ambiguity. This methodology requires the computation of satellite and receiver hardware biases. In addition, the quality of the ambiguity resolution process strongly depends on code multipath. New signals from Galileo and from modernized GPS offer new opportunities for TEC reconstruction. First attempts to compute TEC using triple frequency measurements from modernized GPS (L1/L2/L5) and from Galileo (E1, E5a, E5b) give very promising results but, at the present time, only a few triple frequency GPS/Galileo receivers are available. The University of Liege has purchased two Septentrio PolaRx3G receivers which allow tracking GPS L1/L5 and Galileo E1/E5a signals. These receivers have been installed at the Geophysical Observatory of Dourbes (50.1°N, 4.6° E) and are continuously tracking all GPS and Galileo satellites in view (including GPS SVN49/PRN01, Giove A and Giove B) since November 2009. The paper analyzes the added value of L1/L5 and E1/E5a geometry free combinations and of the new GPS and Galileo signals for TEC reconstruction. It discusses the influence of multipath and of SVN49/PRN1, Giove A and Giove B hardware biases. [less ▲]

Detailed reference viewed: 26 (1 ULg)
See detailSIDC Telescience
Warnant, René ULg; Bidaine, Benoît ULg; Brenot, Hugues et al

Report (2010)

Detailed reference viewed: 37 (7 ULg)
Full Text
See detailTotal Electron Content monitoring using triple frequency GNSS: results with GIOVE-A data
Spits, Justine; Warnant, René ULg

in Proceedings of the Second International Colloquium - Scientific and Fundamental Aspects of the Galileo Programme (2009, October)

Detailed reference viewed: 17 (0 ULg)
See detailLocal ionospheric activity – nowcast and forecast services
Stankov, Stanimir; Warnant, René ULg; Stegen, Koen et al

Conference (2009)

Detailed reference viewed: 16 (0 ULg)
Full Text
Peer Reviewed
See detailMitigation of ionospheric effects on GNSS
Warnant, René ULg; Foelsche, Ulrich; Aquino, Marcio et al

in Annals of Geophysics (2009), 52(3-4), 373-390

The effects of the ionosphere remain one of the main factors which limit the precision and the reliability of many GNSS applications. It is therefore indispensable on the one hand to improve existing ... [more ▼]

The effects of the ionosphere remain one of the main factors which limit the precision and the reliability of many GNSS applications. It is therefore indispensable on the one hand to improve existing mitigation techniques and on the other hand to assess their remaining weaknesses. Mitigation techniques depend on the type of application considered. Therefore, specific mitigation techniques have to be developed. The paper summarizes work performed on this topic in the frame of WP 3.2 “Mitigation techniques” of COST296. [less ▲]

Detailed reference viewed: 283 (69 ULg)
See detailDevelopment of products for GNSS users at the Belgian Solar-Terrestrial Centre of Excellence
Warnant, René ULg; Lejeune, Sandrine; Stankov, Stanimir et al

Conference (2008, December)

Detailed reference viewed: 116 (22 ULg)
Full Text
See detailGalileo Local Component for the detection of atmospheric threats
Warnant, René ULg; Wautelet, Gilles ULg; Lejeune, Sandrine et al

Conference (2008, November)

Detailed reference viewed: 27 (7 ULg)
Full Text
See detailGalileo Local Component for the detection of atmospheric threats
Warnant, René ULg; Bavier, Michaël; Brenot, Hugues et al

in Goodman, John (Ed.) Proceedings of the 12th International Ionospheric Effects Symposium (IES2008) (2008, May)

Detailed reference viewed: 35 (2 ULg)
Full Text
Peer Reviewed
See detailTotal Electron Content monitoring using triple frequency GNSS data: a three-step approach
Spits, Justine; Warnant, René ULg

in Journal of Atmospheric & Solar-Terrestrial Physics (2008), 70

Detailed reference viewed: 35 (4 ULg)
See detailTotal Electron Content monitoring using triple frequency GNSS data: a three-step approach
Spits, Justine; Warnant, René ULg

Conference (2008)

Detailed reference viewed: 9 (1 ULg)
Full Text
See detailReal time TEC monitoring using triple frequency GNSS data : a three step approach
Spits, Justine; Warnant, René ULg

in Proceedings of the First International Colloquium - Scientific and Fundamental Aspects of the Galileo Programme (2007, October)

Detailed reference viewed: 29 (0 ULg)
See detailQuantification of Tropospheric Activity according to Double Differences Analysis of GNSS Phases Records.
Brenot, Hugues; Lejeune, Sandrine; Wautelet, Gilles ULg et al

Conference (2007)

Detailed reference viewed: 20 (3 ULg)