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Global and local gravity field recovery from SatellitetoSatellite Tracking
, 2007
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Finite difference formulae for unequal subintervals using Lagranges interpolation formula
 International Journal of Mathematical Analysis
"... Abstract General finite difference formulae and the corresponding error terms have been derived considering unequally spaced grid points, and using Lagrange's interpolation formula. Further the finite difference formulae and the error terms for equally spaced subintervals have also been obtai ..."
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Abstract General finite difference formulae and the corresponding error terms have been derived considering unequally spaced grid points, and using Lagrange's interpolation formula. Further the finite difference formulae and the error terms for equally spaced subintervals have also been obtained as special cases of the present study. Mathematics Subject Classification: Primary 65D30, Secondary 65D05
Evaluation of PGM2007A by comparison with globally and locally estimated gravity solutions from CHAMP
"... Abstract. New gravity field models incorporate GRACE data as the best available data source for the low to medium wavelength but validation is difficult since comparisons with existing GRACE models will always be biased. Maybe the best independent data set on a global scale is therefore the CHAMP da ..."
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Abstract. New gravity field models incorporate GRACE data as the best available data source for the low to medium wavelength but validation is difficult since comparisons with existing GRACE models will always be biased. Maybe the best independent data set on a global scale is therefore the CHAMP data. It is known that the accuracy of the CHAMP solutions is approximately one order of magnitude worse than the one of GRACEonly solutions. On the other hand and considering e.g. the degree difference RMS between PGM2007A and GGM02S, also discrepencies between these models occur which cannot solely be explained by numerical inaccuracies. Consequently, it has been investigated if the CHAMP solutions can serve as an indicator. This research shows results of the evaluation of the preliminary gravity field model PGM2007A with a CHAMP solution derived from two years of kinematic orbits. The quality of the global CHAMP solutions is further improved by a local refinement with Slepian functions which can make better use of the information in areas of high data density, e.g. in highlatitude areas. However, it is concluded that despite the data density the poorer quality of the CHAMP data is preventing a definite assessment of the quality of the PGM2007A.
vibration signals for condition monitoring
"... Statistical feature extraction of prelockup torsional ..."
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Acknowledgments
"... ingénieur informaticien diplomé EPF de nationalité suisse et originaire de SainteCroix (VD) acceptée sur proposition du jury: Prof. Emre Telatar (EPFL), président du jury Prof. Serge Vaudenay (EPFL), directeur de thèse ..."
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ingénieur informaticien diplomé EPF de nationalité suisse et originaire de SainteCroix (VD) acceptée sur proposition du jury: Prof. Emre Telatar (EPFL), président du jury Prof. Serge Vaudenay (EPFL), directeur de thèse
SUBMITTED TO IEEE TRANSACTION ON IMAGE PROCESSING 1 HighAccuracy Total Variation for Compressed Video Sensing
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Théorie de ChampMoyen, Effets de Taille Finie et Capacité
"... pour l’obtention du grade de Docteur en Sciences de l’Université de NiceSophia Antipolis ..."
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pour l’obtention du grade de Docteur en Sciences de l’Université de NiceSophia Antipolis
SCIENCES ET TECHNOLOGIES DE L’INFORMATION ET DE LA COMMUNICATION
, 2014
"... separation and localization of EEG sources in ..."
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