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Surveying co-located space-geodetic instruments for ITRF computation / Pierguido Sarti in Journal of geodesy, vol 78 n° 3 (October 2004)  

Public [article]  inJournal of geodesy > vol 78 n° 3 (October 2004) . - pp 210 - 222 Titre : Surveying co-located space-geodetic instruments for ITRF computation Type de document : Article/Communication Auteurs : Pierguido Sarti, Auteur ; Patrick Sillard , Auteur ; Luca Vittuari, Auteur Année de publication : 2004 Article en page(s) : pp 210 - 222 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie spatiale [Termes IGN] instrument de géodésie [Termes IGN] International Terrestrial Reference Frame [Termes IGN] modèle géométrique Résumé : (auteur) A new and comprehensive method is presented that can be used for estimating eccentricity vectors between global positioning system (GPS) antennas, doppler orbitography and radiopositioning integrated by satellites (DORIS) antennas, azimuth-elevation (AZ-EL) very long baseline interferometry (VLBI) telescopes, and satellite laser ranging (SLR) and lunar laser ranging (LLR) telescopes. The problem of reference point (RP) definition for these space-geodetic instruments is addressed and computed using terrestrial triangulation and electronic distance measurement (EDM) trilateration. The practical ground operations, the surveying approach and the terrestrial data processing are briefly illustrated, and the post-processing procedure is discussed. It is a geometrically based analytical approach that allows computation of RPs along with a rigorous statistical treatment of measurements. The tight connection between the geometrical model and the surveying procedure is emphasized. The computation of the eccentricity vector and the associated variance–covariance matrix between an AZ-EL VLBI telescope (with or without intersecting axes) and a GPS choke ring antenna is concentrated upon, since these are fundamental for computing the International Terrestrial Reference Frame (ITRF). An extension to RP computation and eccentricity vectors involving DORIS, SLR and LLR techniques is also presented. Numerical examples of the quality that can be reached using the authors’ approach are given. Working data sets were acquired in the years 2001 and 2002 at the radioastronomical observatory of Medicina (Italy), and have been used to estimate two VLBI-GPS eccentricity vectors and the corresponding SINEX files. Numéro de notice : A2004-628 Affiliation des auteurs : IGN+Ext (1940-2011) Thématique : POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1007/s00190-004-0387-0 Date de publication en ligne : 02/09/2004 En ligne : https://doi.org/10.1007/s00190-004-0387-0 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=102741 [article]

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Code-barres	Cote	Support	Localisation	Section	Disponibilité
266-04041	RAB	Revue	Centre de documentation	En réserve L003	Disponible