References of "Warnant, René"
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See detailStatistical study of ionospheric small-scale irregularities at mid-latitudes using GPS measurements
Wautelet, Gilles ULg; Warnant, René ULg

Conference (2007, July 11)

At the present time, Global Navigation Satellite Systems (GNSS) allow to obtain a precision of a few centimeters in real time using positioning techniques like the so-called Real Time Kinematics (RTK ... [more ▼]

At the present time, Global Navigation Satellite Systems (GNSS) allow to obtain a precision of a few centimeters in real time using positioning techniques like the so-called Real Time Kinematics (RTK). Nowadays, the ionosphere remains the most important error source affecting such GNSS applications. Indeed, the presence of small-scale irregular structures in the Total Electron Content (TEC) can strongly affect the reliability and the precision of high precision real time positioning applications. Those small-scale structures can have several origins: Traveling Ionospheric Disturbances, "noise-like" variability in TEC, scintillations. The Royal Meteorological Institute of Belgium (RMI) has developed a software which allows to monitor the TEC using GPS measurements (at one station). The software can also be used to detect small-scale irregularities in TEC by monitoring TEC temporal gradients (i.e. rate of change). The RMI has applied this software to the GPS data collected at Brussels from April 1993 up to now what represents a period of more than a Solar Cycle. The results obtained from this GPS-TEC software will be presented. First, the paper analyzes the different types of small-scale structures which have been observed in TEC. Then, a statistical study of those ionospheric irregularities is presented; we shall analyze their probability of occurrence and their amplitude (in TECU/min) depending on daytime, season, solar activity, geomagnetic activity... The results of our study which is financed by the GNSS Supervising Authority will allow to have a better understanding of the usual case/worst case conditions encountered in high precision positioning applications based on GNSS. [less ▲]

Detailed reference viewed: 40 (6 ULg)
See detailCOST 296 Working Group 3 “Space-based systems” activities and results
Warnant, René ULg

Conference (2007, July)

Detailed reference viewed: 11 (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: 23 (3 ULg)
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See detailSpace Weather influence on satellite based navigation and precise positioning
Warnant, René ULg; Lejeune, Sandrine; Bavier, Michaël

in Lilensten, Jean (Ed.) Space Weather - Research towards Applications in Europe (2007)

Detailed reference viewed: 68 (1 ULg)
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See detailRelevance of active faulting and seismicity studies to assessments of long-term earthquake activity and maximum magnitude in intraplate northwest Europe, between the Lower Rhine Embayment and the North Sea
Camelbeeck, Thierry; Vanneste, Kris; Alexandre, Pierre ULg et al

in Stein, S.; Mazzotti, S. (Eds.) Continental Intraplate Earthquakes: Science, Hazard and Policy Issues (2007)

Detailed reference viewed: 61 (7 ULg)
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Peer Reviewed
See detailIonospheric and geomagnetic conditions during periods of degraded GPS position accuracy : 2. RTK events during disturbed and quiet geomagnetic conditions
Warnant, René ULg; Kutiev, Ivan; Marinov, Pencho et al

in Advances in Space Research (2007), 39(5), 881-888

Detailed reference viewed: 37 (7 ULg)
See detailProject Office – Mid-term progress report
Warnant, René ULg

Report (2007)

Detailed reference viewed: 7 (0 ULg)
See detailProject Office - First synthetic report
Warnant, René ULg

Report (2007)

Detailed reference viewed: 12 (0 ULg)
See detailHybrid Model for Kp prediction, combining solar wind and magnetometer data
Kutiev, Ivan; Andonov, B.; Muhtarov, P. et al

Conference (2007)

Detailed reference viewed: 18 (0 ULg)
See detailReal time TEC monitoring using triple frequency GNSS data : a three step approach
Spits, Justine; Warnant, René ULg

Conference (2007)

Detailed reference viewed: 14 (2 ULg)
See detailModelling the medium-scale TEC structures, observed by Belgian GPS receiver network
Kutiev, Ivan; Marinov, P.; Fidanova, S. et al

Conference (2007)

Detailed reference viewed: 9 (0 ULg)
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See detailNear real time assessment of the ionosphere effect on high accuracy GNSS applications which require ambiguity resolution
Lejeune, Sandrine; Warnant, René ULg

in Proceedings of the 2nd COST296 Workshop (2006, October)

Detailed reference viewed: 22 (2 ULg)
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See detailReal time TEC monitoring using triple frequency GNSS data : A three step approach
Spits, Justine; Warnant, René ULg

in Proceedings of the 2nd COST296 Workshop (2006, October)

Detailed reference viewed: 19 (0 ULg)
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See detailCharacterisation of ionospheric small-scale structures over mid-latitudes in Europe
Warnant, René ULg; Lejeune, Sandrine

in Proceedings of the International Civil Aviation Organization Meeting (2006, October)

Detailed reference viewed: 13 (2 ULg)
See detailL’effet de l’atmosphère terrestre sur les GNSS : une perturbation ou un signal géophysique ?
Warnant, René ULg

Conference given outside the academic context (2006)

Detailed reference viewed: 17 (0 ULg)
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Peer Reviewed
See detailL’effet de l’atmosphère terrestre sur les GNSS : une perturbation ou un signal géophysique ?
Warnant, René ULg

in Bulletin de la Société Géographique de Liège (2006), 47

Detailed reference viewed: 23 (4 ULg)
See detailEUREF Related Activities in Belgium
Bruyninx, Carine; Carpentier, Goerges; De Vidts, B. et al

in EUREF Publication No 14 (2006)

Detailed reference viewed: 20 (2 ULg)