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Trajectoires en consommation minimale pour le déploiement d'une formation de satellites / J.B. Thevenet (2007)
Titre : Trajectoires en consommation minimale pour le déploiement d'une formation de satellites : Techniques de commande optimale Type de document : Monographie Auteurs : J.B. Thevenet, Auteur ; R. Epenoy, Auteur Editeur : Paris, Toulouse, Kourou [France] : Centre National d'Etudes Spatiales CNES Année de publication : 2007 Collection : Note technique du CNES num. 151 Importance : 41 p. Format : 21 x 30 cm Note générale : Bibliographie Langues : Français (fre) Descripteur : [Vedettes matières IGN] Techniques orbitales
[Termes IGN] commande optimale
[Termes IGN] coût
[Termes IGN] fonctionnalité
[Termes IGN] orbite basse
[Termes IGN] orbitographie
[Termes IGN] satellite artificiel
[Termes IGN] secteur spatialRésumé : (Auteur) Nous nous intéressons ici au déploiement en consommation minimale d'une formation de satellites. Le problème est modélisé comme un problème de commande optimale et résolu par une technique de "continuation-lissage". L'application considérée est un cas de déploiement en orbite basse à quatre satellites pour lequel la méthode se révèle très efficace. Toutefois, cette dernière est plus générale et capable de traiter une classe importante de problèmes de déploiement ou de reconfiguration. Numéro de notice : 15226 Affiliation des auteurs : non IGN Thématique : IMAGERIE/POSITIONNEMENT Nature : Monographie Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=55104 Réservation
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Code-barres Cote Support Localisation Section Disponibilité 15226-01 21.10 Livre Centre de documentation Technologies spatiales Disponible 15226-02 21.10 Livre Centre de documentation Technologies spatiales Disponible Thermal re-emission effects on GPS satellites / J. Duha in Journal of geodesy, vol 80 n° 12 (December 2006)
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Titre : Thermal re-emission effects on GPS satellites Type de document : Article/Communication Auteurs : J. Duha, Auteur ; G.B. Afonso, Auteur ; et al., Auteur Année de publication : 2006 Article en page(s) : pp 665 - 674 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie spatiale
[Termes IGN] albedo
[Termes IGN] émission thermique
[Termes IGN] modèle mathématique
[Termes IGN] orbitographie
[Termes IGN] perturbation orbitale
[Termes IGN] photon
[Termes IGN] rayonnement solaire
[Termes IGN] satellite GPSRésumé : (Auteur) Highly precise satellite-derived coordinates depend on accurate orbit predictions, which cannot be achieved with purely empirical models. Global positioning system (GPS) satellites undergo several periodic perturbing forces that have to be modeled and understood. In this scenario, small non-gravitational forces can no longer be neglected when the purpose of the orbital analysis is to obtain accurate results (Vilhena de Moraes 1994). Together with solar radiation pressure, thermal re-emission effects due to solar heating and Earth albedo are the two most important non-gravitational effects. While solar radiation pressure is widely understood, our knowledge about thermal re-emission effects on GPS satellites is in its infancy. Few models have been proposed in recent years and despite the interest of the scientific community, there is a lack of detailed results concerning the magnitude and the behavior of such forces. The aim of this work is to provide a thermal re-emission force model for GPS satellites, simple enough to minimize the problem of modeling a satellite of complex shape with several components on its surface, but accurate enough to provide an estimate of the magnitude and the behavior of these forces, as well as to provide some input to the present knowledge about photon thrust on GPS satellites. Some results of this work point to the fact that thermal re-emission effects are good candidates to partially explain the Y-bias for GPS satellites. Copyright Springer Numéro de notice : A2006-538 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1007/s00190-006-0060-x En ligne : https://doi.org/10.1007/s00190-006-0060-x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28261
in Journal of geodesy > vol 80 n° 12 (December 2006) . - pp 665 - 674[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 266-06111 RAB Revue Centre de documentation En réserve L003 Disponible 266-06112 RAB Revue Centre de documentation En réserve L003 Disponible Doris: from orbit determination for altimeter missions to geodesy / Pascal Willis in Comptes rendus : Géoscience, vol 338 n° 14-15 (November 2006)
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Titre : Doris: from orbit determination for altimeter missions to geodesy Type de document : Article/Communication Auteurs : Pascal Willis , Auteur ; Christian Jayles, Auteur ; Yoaz E. Bar-Sever, Auteur Année de publication : 2006 Article en page(s) : pp 968 - 979 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie spatiale
[Termes IGN] altimétrie satellitaire par radar
[Termes IGN] données DORIS
[Termes IGN] International DORIS Service
[Termes IGN] orbite basse
[Termes IGN] orbitographie
[Termes IGN] positionnement par DORIS
[Termes IGN] précision centimétrique
[Termes IGN] temps réelRésumé : (Auteur) In the late 1980s, the French Centre national d'études spatiales' (CNES), in conjunction with the Institut géographique national' (IGN) and the Groupe de recherche en géodésie spatiale' (GRGS) developed a new geodetic tracking system called DORIS for precise orbit determination of low Earth orbiting satellites for oceanographic missions. Since then, the number of applications has increased, leading recently to the creation of an International DORIS Service (IDS), making it a part of the Global Geodetic Observation System (GGOS) currently under development within the International Association of Geodesy (IAG). The goal of this paper is to present the current applications of the DORIS system for precise orbit determination as well as for geodesy, geophysics, Earth rotation or atmospheric sciences. Current accuracies are discussed as well as already planned improvements. In particular, recent improvements in on-board real time orbit showing 5-cm radial agreement with post-processed orbits are discussed. In addition, when using a 5-satellite constellation, 1-cm precision is achievable for station position as well as sub milli-arcsecond precision for polar motion. Copyright Elsevier Numéro de notice : A2006-659 Affiliation des auteurs : LAREG+Ext (1991-2011) Thématique : POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueNat DOI : 10.1016/j.crte.2005.11.013 Date de publication en ligne : 24/01/2006 En ligne : https://doi.org/10.1016/j.crte.2005.11.013 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=33631
in Comptes rendus : Géoscience > vol 338 n° 14-15 (November 2006) . - pp 968 - 979[article]
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Titre : Préface Type de document : Article/Communication Auteurs : Pascal Willis , Auteur Année de publication : 2006 Article en page(s) : p. 401 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie spatiale
[Termes IGN] DORIS
[Termes IGN] observation de la Terre
[Termes IGN] orbitographieNuméro de notice : A2006-675 Affiliation des auteurs : IGN (1940-2011) Thématique : POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1007/s00190-006-0077-1 Date de publication en ligne : 08/08/2006 En ligne : https://doi.org/10.1007/s00190-006-0077-1 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=102744
in Journal of geodesy > vol 80 n° 8-11 (November 2006) . - p. 401[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 266-06101 RAB Revue Centre de documentation En réserve L003 Disponible 266-06102 RAB Revue Centre de documentation Revues en salle Disponible Twenty years of evolution for the DORIS permanent network: from its initial deployment to its renovation / Hervé Fagard in Journal of geodesy, vol 80 n° 8-11 (November 2006)
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Titre : Twenty years of evolution for the DORIS permanent network: from its initial deployment to its renovation Type de document : Article/Communication Auteurs : Hervé Fagard, Auteur Année de publication : 2006 Article en page(s) : pp 429 - 456 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie spatiale
[Termes IGN] altimétrie
[Termes IGN] DORIS
[Termes IGN] historique
[Termes IGN] Institut géographique national (France)
[Termes IGN] International Terrestrial Reference Frame
[Termes IGN] orbitographie
[Termes IGN] positionnement par DORIS
[Termes IGN] précision centimétrique
[Termes IGN] précision décimétrique
[Termes IGN] réseau Doris
[Termes IGN] secteur terrien
[Termes IGN] tectonique des plaquesRésumé : (Auteur) The ground network is one of the major components of the DORIS system. Its deployment, managed by the French national mapping agency [Institut Géographique National, (IGN)], started in 1986 at a sustained pace that allowed it to reach 32 stations upon the launch of the first DORIS-equipped satellite (SPOT-2) in 1990. For the first generation of transmitting antennas, the installation procedures were adapted to the decimetre performance objective for the DORIS system. During the second era of the deployment of an even denser network, the antenna support layouts gradually evolved towards a better quality, thus improving the long-term stability of the antenna reference point, and a new antenna model allowed a more accurate survey. As the positioning accuracy of the DORIS system improved, it was necessary to review the antenna stability for the whole network. A first stability estimation, using criteria like antenna model and support design, was followed by a major renovation effort which started in 2000 and is now almost complete. In 6 years, through the renovation or installation of 43 stations and the implementation of new installation procedures to meet more stringent stability requirements, significant improvement in network quality was achieved. Later a more analytical approach, taking into account the characteristics of each element that support the antenna, has been taken to assess the potential stability of all DORIS occupations. IGN is also in charge of its operational maintenance, an intensive activity on account of the significant failure rate of the successive generations of equipment. Nevertheless, thanks to its unique density and homogeneity, DORIS has maintained a very good coverage rate of the satellite orbits. Through 38 well-distributed current co-locations with the Global Positioning System, Satellite Laser Ranging and Very Long Baseline Interferometry techniques in its current 56-station network, DORIS contributes significantly to the realisation of the International Terrestrial Reference System. DORIS stations in areas where no other space geodesy technique is available provide a significant contribution to the study of plate tectonics. Many stations co-located with tide gauges contribute to the monitoring of sea level changes. Although it has several advantages over similar techniques, there is still room for improvement in the DORIS network. Copyright Springer Numéro de notice : A2006-533 Affiliation des auteurs : IGN (1940-2011) Thématique : POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1007/s00190-006-0084-2 En ligne : https://doi.org/10.1007/s00190-006-0084-2 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28256
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Code-barres Cote Support Localisation Section Disponibilité 266-06101 RAB Revue Centre de documentation En réserve L003 Disponible 266-06102 RAB Revue Centre de documentation Revues en salle Disponible Comparison of two physical sensor models for satellite images: position-rotation model and orbit-attitude model / T. Kim in Photogrammetric record, vol 21 n° 114 (June - August 2006)PermalinkSpace geodetic techniques and the canadian spatial reference system evolution, status and possibilities / Pierre Héroux in Geomatica, vol 60 n° 2 (June 2006)PermalinkNew, improved GPS: the legacy accuracy improvement initiative / T. Creel in GPS world, vol 17 n° 3 (March 2006)PermalinkSystematic errors in the Z-geocenter derived using satellite tracking data: a case study from SPOT-4 DORIS data in 1998 / Pascal Willis in Journal of geodesy, vol 79 n° 10-11 (February 2006)PermalinkLooking for systematic error in scale from Terrestrial Reference Frames derived from DORIS data / Pascal Willis (2006)PermalinkDefining a DORIS core network for Jason-1 precise orbit determination based on ITRF2000 : methods and realization / Pascal Willis in Journal of geodesy, vol 79 n° 6-7 (September - October 2005)PermalinkDoris satellite antenna maps derived from long-term residuals time series / Pascal Willis in Advances in space research, vol 36 n° 3 (March 2005)PermalinkEffects of thermosphere total density pertubations on LEO Orbits during severe geomagnetic conditions (Oct-Nov 2003) using Doris and SLR data / Florent Deleflie in Advances in space research, vol 36 n° 3 (March 2005)PermalinkNew moon rising / M. Bedford in GEO:connexion, vol 4 n° 3 (march 2005)PermalinkTerrestrial Reference Frames effects on global sea level rise determination from Topex-Poseidon altimetric data / Laurent Morel in Advances in space research, vol 36 n° 3 (March 2005)PermalinkCalcul de l'allongement troposphérique via l'utilisation de cartes de l'ECMWF / Samuel Nahmani (2005)PermalinkComportement de l'oscillateur DORIS/Jason au passage de l'anomalie sud-atlantique / Pascal Willis in Comptes rendus : Géoscience, tome 336 n°9 (July 2004)PermalinkCelebrating a decade of the International GPS Service, Workshop & Symposium 2004 / Michael Meindl (2004)PermalinkGPS satellite surveying / Alfred Leick (2004)PermalinkImproved DORIS accuracy for precise orbit determination and geodesy / Pascal Willis (2004)PermalinkOne-centimeter orbit determination for Jason-1: New GPS-based strategies / Bruce J. Haines in Marine geodesy, vol 27 n°1-2 (January - June 2004)PermalinkNear real-time geocoding of SAR imagery with orbit error removal / A.J.E. Smith in International Journal of Remote Sensing IJRS, vol 24 n° 24 (December 2003)PermalinkInitial orbit determination results for Jason-1: Towards a 1 cm orbit / Bruce J. Haines in Navigation : journal of the Institute of navigation, vol 50 n° 3 (Fall 2003)PermalinkTopex-Jason combined GPS-DORIS orbit determination in the TanDEM phase / Pascal Willis in Advances in space research, vol 31 n° 8 (14/03/2003)PermalinkInstrument of GRACE: GPS augments gravity measurements / C. Dunn in GPS world, vol 14 n° 2 (February 2003)Permalink