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Local ties, VLBI-GPS eccentricities and combination of geodetic reference frames / Claudio Abbondanza (2008) 

Public Titre : Local ties, VLBI-GPS eccentricities and combination of geodetic reference frames : a critical investigation applied to the co-located observatory of Medicina Type de document : Thèse/HDR Auteurs : Claudio Abbondanza, Auteur Editeur : Bologne : Universita degli studi di Bologna Année de publication : 2008 Importance : 195 p. Format : 21 x 30 cm Note générale : Bibliographie Dottorato di ricerca in scienze geodetiche e topografiche, Universita degli studi di Bologna Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie spatiale [Termes IGN] CATREF [Termes IGN] co-positionnement [Termes IGN] déformation de la croute terrestre [Termes IGN] données GPS [Termes IGN] données ITGB [Termes IGN] International Terrestrial Reference Frame [Termes IGN] points homologues [Termes IGN] repère de référence [Termes IGN] stabilité [Termes IGN] station de référence Index. décimale : THESE Thèses et HDR Note de contenu : Introduction 1 Local Ties as result of a Network Approach 1.1 Local ties within the context of local and global geodetic networks 1.1.1 Global geodetic networks: some peculiarities 1.1.2 Reference point definition for a VLBI-GPS eccentricity 1.1.3 Reference point estimation for a VLBI-GPS eccentricity 1.2 Peculiarities of local geodetic networks for the eccentricity estimation 1.3 Articulation of a local tie estimation procedure 1.3.1 Datum definition for GPS-based and terrestrial local ties 1.4 Surveying the VLBI-GPS eccentricity at Medicina 1.4.1 Overview of terrestrial and GPS datasets 1.4.2 Site Description 1.4.3 The application of the indirect approach to the VLBI-GPS eccentricity 1.5 Terrestrial surveys at Medicina 1.5.1 Instruments and Devices 1.5.2 Ancillary GPS observations 1.5.3 Local geodetic network description 1.5.4 Terrestrial Network solutions 1.6 GPS-based surveys at Medicina 1.6.1 The experiences undertaken at Medicina 2 Eccentricity as outcome of a Local Tie 2.1 Geometrical modelling of reference points 2.1.1 The VLBI case 2.1.2 Construction of the normal conditioned system for a VLBI-GPS eccentricity 2.1.3 Geometric Hyper-conditioning 2.1.4 The GPS case 2.2 The passage from local to global reference frame 2.2.1 The GPS-dependency of terrestrial eccentricities 2.2.2 Self-consistency of GPS-based local ties 2.3 Some guidelines in the analysis of results 2.3.1 Geometrical modelling Scenarios proposed in the eccentricity estimations 2.4 Assessment of results 3 Local Ties and interactions with the combination of Geodetic Reference frames 3.1 The role of local ties in a combination procedure 3.1.1 A Balance Unknowns versus Pseudo-observations 3.1.2 Local ties: how to handle them 3.1.3 Local ties' usage within an ITRF combination 3.1.4 Local ties and criteria for their quality assessment 3.2 CATREF and Local ties 3.3 Analysis of the ITRF-like combinations performed 3.3.1 Input Data for the ITRF-like combinations 3.3.2 An outline of the ITRF-like combinations performed 3.3.3 Assessment of the results 3.4 Ill-alignment Scenarios 4. Local Ties, site stability and VLBI gravitational deformations 4.1 Site Stability via Local Ties' analysis 4.1.1 Introduction 4.1.2 Is it possible to detect relative site-dependent displacements from multi-temporal realizations of tie vectors? 4.2 Effects of deformations over the VLBI IP determination 4.2.1 Introduction 4.2.2 Local ties and VLBI deformations 4.2.3 VLBI deformational patterns through terrestrial observations Conclusion Numéro de notice : 13752 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Thèse française Note de thèse : Dottorato di ricerca : scienze geodetiche e topografiche : , Italia, Universita degli studi di Bologna : 2008 nature-HAL : Thèse DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=45232

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