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Auteur Alessandro Caporali |
Documents disponibles écrits par cet auteur (8)
Ajouter le résultat dans votre panier Affiner la recherche Interroger des sources externesRegional integration of long-term national dense GNSS network solutions / A. Kenyeres in GPS solutions, vol 23 n° 4 (October 2019)
Titre : Regional integration of long-term national dense GNSS network solutions Type de document : Article/Communication Auteurs : A. Kenyeres, Auteur ; J.G. Bellet, Auteur ; Carine Bruyninx, Auteur ; Alessandro Caporali, Auteur ; F. de Doncker, Auteur ; B. Droscak, Auteur ; Anne Duret Année de publication : 2019 Projets : 3-projet - voir note / Article en page(s) : n° 122 Note générale : bibliographie
The related research work was supported by the Hungarian Research Fund (OTKA) under contract # K109464Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Systèmes de référence et réseaux
[Termes IGN] champ de vitesse
[Termes IGN] densification géodésique
[Termes IGN] données GNSS
[Termes IGN] format SINEX
[Termes IGN] intégration de données
[Termes IGN] International Terrestrial Reference Frame
[Termes IGN] réseau géodésique permanent
[Termes IGN] réseau permanent EUREFRésumé : (auteur) The EUREF Permanent Network Densification is a collaborative effort of 26 European GNSS analysis centers providing series of daily or weekly station position estimates of dense national and regional GNSS networks, in order to combine them into one homogenized set of station positions and velocities. During the combination, the station metadata, including station names, DOMES numbers, and position offset definitions were carefully homogenized, position outliers were efficiently eliminated, and the results were cross-checked for any remaining inconsistencies. The results cover the period from March 1999 to January 2017 (GPS week 1000-1933) and include 31 networks with positions and velocities for 3192 stations, well covering Europe. The positions and velocities are expressed in ITRF2014 and ETRF2014 reference frames based on the Minimum Constraint approach using a selected set of ITRF2014 reference stations. The position alignment with the ITRF2014 is at the level of 1.5, 1.2, and 3.2 mm RMS for the East, North, Up components, respectively, while the velocity RMS values are 0.17, 0.14, and 0.38 mm/year for the East, North, and Up components, respectively. The high quality of the combined solution is also reflected by the 1.1, 1.1, and 3.5 mm weighted RMS values for the East, North, and Up components, respectively. Numéro de notice : A2019-497 Affiliation des auteurs : IGN+Ext (2012-2019) Thématique : POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1007/s10291-019-0902-7 Date de publication en ligne : 04/10/2019 En ligne : https://doi.org/10.1007/s10291-019-0902-7 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=96888
in GPS solutions > vol 23 n° 4 (October 2019) . - n° 122[article]
Titre : Implementation of the ETRS89 in Europe: Current Status and Challenges Type de document : Article/Communication Auteurs : Carine Bruyninx, Auteur ; Zuheir Altamimi Editeur : Berlin, Heidelberg, Vienne, New York, ... : Springer Année de publication : 2015 Collection : International Association of Geodesy Symposia, ISSN 0939-9585 num. 146 Conférence : REFAG 2014, Reference Frames for Applications in Geosciences (IAG 2014 - Commission 1 symposium) 13/10/2014 17/10/2014 Kirchberg Grand Duché du Luxembourg Proceedings Springer Importance : pp 135 - 145 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Systèmes de référence et réseaux
[Termes IGN] champ de vitesse
[Termes IGN] densification géodésique
[Termes IGN] European Terrestrial Reference System 1989
[Termes IGN] INSPIRE
[Termes IGN] réseau permanent EUREFRésumé : (auteur) The EUREF (Reference Frame Sub-Commission for Europe) Permanent GNSS Network (EPN) serves as the backbone for the realization of, and access to, the European Terrestrial Reference System (ETRS89). The cumulative site positions and velocities for the EPN stations are used for national ETRS89 densifications and geo-information applications. EUREF has developed specific guidelines through which European countries ask validation of their national ETRS89 densification campaigns. Today, the majority of the European countries has passed this process and a large part of European National Mapping and Cartographic Agencies have officially adopted ETRS89. In addition, ETRS89 plays a fundamental role in INSPIRE (Infrastructure for Spatial Information in the European Community).
In the meantime, some geographical zones are experiencing considerable deformation, degrading the lifetime of their national ETRS89 realizations. In order to derive a cross-boundary European velocity model that can be applied by different countries on top of their validated ETRS89 realization (while keeping consistency with their neighboring countries) the EUREF Technical Working Group has set up two initiatives: the EPN densification project and the EUREF Working Group on Deformation Models.Numéro de notice : C2014-022 Affiliation des auteurs : LASTIG LAREG+Ext (2012-mi2018) Thématique : POSITIONNEMENT Nature : Communication nature-HAL : ComAvecCL&ActesPubliésIntl DOI : 10.1007/1345_2015_130 En ligne : https://doi.org/10.1007/1345_2015_130 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=90681
Titre : EUREF’s contribution to national, European and global geodetic infrastructures Type de document : Article/Communication Auteurs : Johannes Ihde, Auteur ; H. Habrich, Auteur ; M. Sacher, Auteur ; Wolfgang Söhne, Auteur ; Zuheir Altamimi Editeur : Berlin, Heidelberg, Vienne, New York, ... : Springer Année de publication : 2014 Collection : International Association of Geodesy Symposia, ISSN 0939-9585 num. 139 Conférence : IAG 2011, General Assembly 28/06/2011 02/07/2011 Melbourne Australie Proceedings Springer Importance : pp 189 - 196 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Systèmes de référence et réseaux
[Termes IGN] International Terrestrial Reference FrameRésumé : (auteur) The EUREF key infrastructures are the EUREF Permanent GNSS Network (EPN) and the Unified European Levelling Network (UELN). The EPN runs almost 250 Global Navigation Satellite System (GNSS) stations in a well organized environment and serves as the backbone of the realization of and access to the European Terrestrial Reference System (ETRS89) and as contribution to the densification of the International Terrestrial Reference Frame (ITRF2008). The upcoming European navigation system Galileo will be a big challenge for the EPN in sense of upgrading the station network. Almost half of the EPN stations are capable of streaming their data in real-time. To strengthen the robustness of the real-time data and product distribution two additional Ntrip broadcasters were set up at different premises in Europe. The EVRS and the ETRS89 have been adopted by the European Community as coordinate reference systems in INSPIRE for environmental policies, or policies and activities that have an impact on the environment. Numéro de notice : C2011-059 Affiliation des auteurs : LASTIG LAREG+Ext (2012-mi2018) Thématique : POSITIONNEMENT Nature : Communication nature-HAL : ComAvecCL&ActesPubliésIntl DOI : 10.1007/978-3-642-37222-3_24 Date de publication en ligne : 06/10/2013 En ligne : https://doi.org/10.1007/978-3-642-37222-3_24 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=99600
Titre : Relation between the Italian and European height systems Type de document : Article/Communication Auteurs : Alessandro Caporali, Auteur ; F. Cauli, Auteur ; R. Maseroli, Auteur Année de publication : 2010 Article en page(s) : pp 59 - 71 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Systèmes de référence et réseaux
[Termes IGN] altitude normale
[Termes IGN] conversion altimétrique
[Termes IGN] European vertical GPS reference network
[Termes IGN] Italie
[Termes IGN] réseau de nivellement
[Termes IGN] réseau permanent EUREF
[Termes IGN] Rete Dinamica Nazionale
[Termes IGN] Sardaigne
[Termes IGN] Sicile
[Termes IGN] système de référence altimétrique
[Termes IGN] système de référence local
[Termes IGN] transformation de coordonnéesRésumé : (Auteur) The availability at continental scale of a gravimetric quasi geoid model such as EGG08 (European Gravimetric Geoid 2008) and of geodetic networks such as the European Permanent Network of EUREF and its national densifications have the potential to bridge national height networks. The offset and tilts which have traditionally affected the national vertical networks can be calibrated and the resulting continent-wide vertical network represents a common height datum. The relation between the Italian vertical datum, defined in terms of nodal points of fist order leveling lines, and the European EVRS datum is addressed here, on the basis of normal heights from geopotential numbers and of ellipsoidal heights from GEOTRAV GPS/leveling points re-adjusted on the new Rete Dinamica Nazionale consistently with the ETRF2000 frame. Because of the different reference tide gauges, the Continental Italy, Sicily and Sardinia points are analyzed separately. It is shown that these three vertical datums have offsets relative to the EUVN of - 86 + 1, -156 + 1 and - 353 + 2 mm respectively. Continental Italy and Sicily also exhibit a small but non negligible tilt in the east and north direction respectively. Once these offsets and tilts are accounted for, the leveling data fit the values predicted by the GPS and EGG08 data to less than 10 cm rms, consistently with the level of accuracy of the EGG08 quasi geoid. Our result provide those transformation formulas which are necessary to convert normal heights in the national datum into normal heights in the European datum, consistently with the INSPIRE specifications. Numéro de notice : A2010-589 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=77987
in Bulletin of geodesy and geomatics BGG > vol 69 n° 1 (March 2010) . - pp 59 - 71[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 013-2010011 RAB Revue Centre de documentation En réserve L003 Disponible
Titre : U-SBAS: A universal multi-SBAS standard to ensure compatibility, interoperability and interchangeability Type de document : Article/Communication Auteurs : Mohamed Sahmoudi, Auteur ; Jean-Luc Issler, Auteur ; Felix Perozans, Auteur ; Youssef Tawk, Auteur ; Aleksandar Jovanovic, Auteur ; Cyril Botteron, Auteur ; Pierre-André Farine, Auteur ; Landry René, Auteur ; Véronique Dehant, Auteur ; Alessandro Caporali, Auteur ; Serge Reboul, Auteur ; Pascal Willis Editeur : New York : Institute of Electrical and Electronics Engineers IEEE Année de publication : 2010 Conférence : NAVITEC 2010, 5th ESA Workshop on Satellite Navigation Technologies and European Workshop on GNSS Signals and Signal Processing 08/12/2010 10/12/2010 Noordwijk Pays-Bas Proceedings IEEE Importance : 18 p. Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie spatiale
[Termes IGN] interopérabilité
[Termes IGN] standard
[Termes IGN] système d'extensionRésumé : (auteur) Several regional augmentation GNSS systems (like SBAS) are already fully operational and other are under development with new frequencies and signals on the way. Therefore, it becomes imperative to guarantee for all GNSS users the compatibility, interoperability and interchangeability between all these systems. The goal is to ensure that the user's multi-mode receiver can choose and mix signals from different GNSS and SBAS systems to achieve more availability, accuracy and robustness. Attaining that objective will require agreements on frequency plans and signal designs, as well as other details including means to ensure interoperability of system times and geodetic reference systems. This paper suggests a Universal-SBAS (U-SBAS) standard, compatible with all the existing and planned regional GNSS systems (and their evolutions) in the world, like IRNSS, QZSS, PCW, BEIDOU-1, WAAS, EGNOS, SDCM, GAGAN, MSAS. The proposed worldwide multimodal U-SBAS standard carries additional channels (signals and messages) to cover the non-aeronautical specific Safety-of-Life (SoL) services, and also High Precision Positioning Services (HPPS), Position Velocity Time (PVT), authentication services, safety services, scientific application services, High Precision Timing Services (HPTS), etc. U-SBAS is designed to be fully interoperable with the current SBAS standards and to allow significant performance and service improvements in operational, scientific and/or security areas. Finally usage examples of the proposed standard are given for different types of applications such as science, aviation, precise point positioning, timing, security, robust positioning, maritime and reflectometry. Numéro de notice : C2010-074 Affiliation des auteurs : LAREG+Ext (1991-2011) Thématique : POSITIONNEMENT Nature : Communication nature-HAL : ComAvecCL&ActesPubliésIntl DOI : 10.1109/NAVITEC.2010.5708076 En ligne : https://doi.org/10.1109/NAVITEC.2010.5708076 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=102057
