Centre de documentation
scientifique

New results in airborne vector gravimetry using strapdown INS/DGPS / M. Senobari in Journal of geodesy, vol 84 n° 5 (May 2010)  

Public [article]  inJournal of geodesy > vol 84 n° 5 (May 2010) . - pp 277 - 291 Titre : New results in airborne vector gravimetry using strapdown INS/DGPS Type de document : Article/Communication Auteurs : M. Senobari, Auteur Année de publication : 2010 Article en page(s) : pp 277 - 291 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie physique [Termes IGN] estimation statistique [Termes IGN] GPS en mode différentiel [Termes IGN] GPS-INS [Termes IGN] gravimétrie aérienne Résumé : (Auteur) A method for airborne vector gravimetry has been developed. The method is based on developing the error dynamics equations of the INS in the inertial frame where the INS system errors are estimated in a wave estimator using inertial GPS position as update. Then using the error-corrected INS acceleration and the GPS acceleration in the inertial frame, the gravity disturbance vector is extracted. In the paper, the focus is on the improvement of accuracy for the horizontal components of the airborne gravity vector. This is achieved by using a decoupled model in the wave estimator and decorrelating the gravity disturbance from the INS system errors through the estimation process. The results of this method on the real strapdown INS/DGPS data are promising. The internal accuracy of the horizontal components of the estimated gravity disturbance for repeated airborne lines is comparable with the accuracy of the down component and is about 4–8 mGal. Better accuracy (2–4 mGal) is achieved after applying a wave-number correlation filter (WCF) to the parallel lines of the estimated airborne gravity disturbances. Numéro de notice : A2010-181 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1007/s00190-010-0366-6 Date de publication en ligne : 01/03/2010 En ligne : https://doi.org/10.1007/s00190-010-0366-6 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30376 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
266-2010051	SL	Revue	Centre de documentation	Revues en salle	Disponible