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Auteur Ron Muellerschoen |
Documents disponibles écrits par cet auteur (5)
Ajouter le résultat dans votre panier Affiner la recherche Interroger des sources externesTopex-Jason combined GPS-DORIS orbit determination in the TanDEM phase / Pascal Willis in Advances in space research, vol 31 n° 8 (14/03/2003)
Titre : Topex-Jason combined GPS-DORIS orbit determination in the TanDEM phase Type de document : Article/Communication Auteurs : Pascal Willis Année de publication : 2003 Article en page(s) : pp 1941 - 1946 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Techniques orbitales
[Termes IGN] balise DORIS
[Termes IGN] GIPSY-OASIS
[Termes IGN] Jason
[Termes IGN] orbite précise
[Termes IGN] orbitographie
[Termes IGN] récepteur DORIS
[Termes IGN] récepteur GPS
[Termes IGN] TOPEX-PoseidonRésumé : (Auteur) In December 2001, the Jason-1 satellite was launched to extend the long-term success of the TOPEX/POSEIDON (T/P) oceanographic mission. The goals for the Jason-1 mission represent both a significant challenge and a rare opportunity for precise orbit determination (POD) analysts. Like its predecessor, Jason-1 carries three types of POD systems: a GPS receiver, a DORIS receiver and a laser retro-reflector. In view of the 1-cm goal for radial orbit accuracy, several major improvements have been made to the POD systems: 1) the GPS "BlackJack" TurboRogue Space Receiver (TRSR) tracks up to 12 GPS spacecraft using advanced codeless tracking techniques; 2) a newly developed DORIS receiver can track two ground beacons simultaneously with lower noise. In addition, the satellite itself features more straightforward attitude behavior, and a symmetric shape, simplifying the orbit determination models compared to T/P. On the other hand, the area-to-mass ratio for Jason-1 is larger, implying larger potential surface-force errors. This paper presents Jason-1 POD results obtained at JPL using the GIPSYOASIS II (GOA) software package. Results from standard tests (orbit overlaps, laser control points) suggest that 1 to 2 cm radial orbit precision is already being achieved using the JPL reduced-dynamic estimation approach. We also report new DORIS POD strategies that make full profit of the additional number of common DORIS observations due to the T/P-Jason-1 tandem mode of orbit as well the additional dual-channel capability of the upgraded JASON receiver (allowing simultaneous tracking of two ground stations). New information on the satellite's time scale is availed through this new estimation strategy. Results show that a significant improvement to DORIS-based orbits could be gained using this strategy. Building on these results, we have extended the GIPSY/OASIS II software capability to more fully exploit the combined benefit of both GPS and DORIS measurements from UP and Jason-1 in their preliminary tandem mode. POD test results are used to demonstrate the accuracy of these orbits and to compare results in different cases: DORIS-alone, and GPS and DORIS together in both single- and multi-satellite modes. On the other, we have demonstrated and explained an anomalous behavior of the on-board oscillator when crossing the South Atlantic Anomaly region. Finally, plans for future software enhancements, processing strategies and modeling improvements are presented. Numéro de notice : 54856 Affiliation des auteurs : IGN+Ext (1940-2011) Thématique : IMAGERIE/POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/S0273-1177(03)00156-X Date de publication en ligne : 28/10/2003 En ligne : https://doi.org/10.1016/S0273-1177(03)00156-X Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=34308
in Advances in space research > vol 31 n° 8 (14/03/2003) . - pp 1941 - 1946[article]
Titre : A delay-doppler-mapping receiver system for GPS-reflection remote sensing Type de document : Article/Communication Auteurs : S.T. Lowe, Auteur ; Ron Muellerschoen, Auteur ; et al., Auteur Année de publication : 2002 Article en page(s) : pp 1150 - 1163 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Télédétection
[Termes IGN] logiciel de post-traitement GPS
[Termes IGN] mesurage d'effet Doppler
[Termes IGN] récepteur GPS
[Termes IGN] réflexion (rayonnement)Résumé : (Auteur) A delay/Doppler-mapping receiver system, developed specifically for global positioning system (GPS)-reflection remote sensing, is described, and example delay/Doppler waveforms are presented. The high-quality data obtained with this system provide a more accurate and detailed examination of ground-based and aircraft GPS-reflection phenomenology than has been available to date. As an example, systematic effects in the reflected signal delay waveform, due to nonideal behavior of the C/A-code auto-correlation function, are presented for the first time. Both a single-channel open-loop recording system and a recently developed 16-channel recorder are presented. The open-loop data from either recorder are postprocessed with a software GPS receiver that performs the following functions: signal detection; phase and delay tracking; delay, Doppler, and delay/Doppler waveform mapping; dual-frequency (L1 and L2) processing; C/A-code and Y-code waveform extraction; coherent integrations as short as 125 fts; navigation message decoding; and precise observable time tagging. The software can perform these functions on all detectable satellite signals without dead time, and custom signal-processing features can easily be included into the system. Data collected with this system can, in principle, be processed to extract 1) over an ocean: mean sea height, wind speed and direction, and significant wave height; 2) over land: soil moisture, biomass, and bistatic imaging; and 3) over ice: ice age, thickness, and surface ice density. Numéro de notice : A2002-179 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1109/TGRS.2002.1010901 En ligne : https://doi.org/10.1109/TGRS.2002.1010901 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=22094
in IEEE Transactions on geoscience and remote sensing > vol 40 n° 5 (May 2002) . - pp 1150 - 1163[article]Exemplaires(2)
Code-barres Cote Support Localisation Section Disponibilité 065-02051 RAB Revue Centre de documentation En réserve L003 Disponible 065-02052 RAB Revue Centre de documentation En réserve L003 Disponible
Titre : First assessment of GPS-Based reduced dynamic orbit determination on Topex-Poseidon Type de document : Article/Communication Auteurs : T.P. Yunck, Auteur ; Willy I. Bertiger, Auteur ; S.C. Wu, Auteur ; Yoaz E. Bar-Sever, Auteur ; E.J. Christensen, Auteur ; Bruce J. Haines, Auteur ; Steve M. Lichten, Auteur ; Ron Muellerschoen, Auteur ; Y. Vigue, Auteur ; Pascal Willis Année de publication : 1994 Article en page(s) : pp 541 - 544 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Techniques orbitales
[Termes IGN] analyse comparative
[Termes IGN] détection d'erreur
[Termes IGN] données GPS
[Termes IGN] erreur moyenne quadratique
[Termes IGN] orbitographie
[Termes IGN] TOPEX-PoseidonRésumé : (Auteur) The reduced dynamic GPS tracking technique has been applied for the first time as part of the GPS experiment on TOPEX-POSEIDON. This technique employs local geometric position corrections to reduce orbit errors caused by the mis-modelling of satellite forces. Results for a 29-day interval in early 1993 are evaluated through postfit residuals and formal errors, comparison with GPS and laser/DORIS dynamic solutions, comparisons on 6-hr overlaps of adjacent 30-hr data arcs, altimetry closure and crossover analysis. Reduced dynamic orbits yield slightly better crossover agreement than other techniques and appear to be accurate in altitude to about 3 cm RMS. Numéro de notice : 62455 Affiliation des auteurs : LAREG+Ext (1991-2011) Thématique : POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1029/94GL00010 Date de publication en ligne : 01/04/1994 En ligne : https://doi.org/10.1029/94GL00010 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=34387
in Geophysical research letters > vol 21 n° 7 [01/04/1994] . - pp 541 - 544[article]
Titre : Processing Doris data with the GIPSY OASIS 2 software for precise positioning and orbit determination: first results and intercomparisons Type de document : Article/Communication Auteurs : Pascal Willis Editeur : Paris : Institut Géographique National - IGN (1940-2007) Année de publication : 1994 Collection : Publications techniques en géodésie Sous-collection : Cours et conférences Conférence : IAG 1993, assemblée générale de l'association internationale de géodésie 06/08/1993 13/08/1993 Pékin Chine Importance : 7 p. Format : 21 x 30 cm Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie spatiale
[Termes IGN] données DORIS
[Termes IGN] GIPSY-OASIS
[Termes IGN] restitution d'orbite
[Termes IGN] TOPEX-Poseidon
[Termes IGN] trajectographie par DORISIndex. décimale : 30.62 Système de positionnement Doris Numéro de notice : 62497 Affiliation des auteurs : LAREG+Ext (1991-2011) Thématique : POSITIONNEMENT Nature : Communication DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=64835 Exemplaires(3)
Code-barres Cote Support Localisation Section Disponibilité 62497-01 30.62 Tiré à part Centre de documentation Géodésie Disponible 62497-02 30.62 Tiré à part Centre de documentation Géodésie Disponible 62497-03 7D Livre SGM K001 Exclu du prêt
Titre : Early results from the Topex-Poseidon GPS precise orbit determination demonstration Type de document : Article/Communication Auteurs : Willy I. Bertiger, Auteur ; Sien Wu, Auteur ; Tom Yunck, Auteur ; Ron Muellerschoen, Auteur ; Pascal Willis Editeur : Paris : Institut Géographique National - IGN (1940-2007) Année de publication : 01/03/1993 Collection : Publications techniques en géodésie Sous-collection : Cours et conférences Conférence : AAS-AIAA 1993, Spaceflight mechanics meeting 22/02/1993 24/02/1993 Pasadena Californie - Etats-Unis OA abstracts only Importance : 14 p. Format : 21 x 30 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie spatiale
[Termes IGN] analyse comparative
[Termes IGN] DORIS
[Termes IGN] erreur moyenne quadratique
[Termes IGN] mission spatiale
[Termes IGN] orbitographie par GNSS
[Termes IGN] précision centimétrique
[Termes IGN] satellite artificiel
[Termes IGN] TOPEX-Poseidon
[Termes IGN] traitement de données GNSSIndex. décimale : 21.10 Techniques orbitales - généralités Résumé : (auteur) TOPEX/POSIEDON a US/French oceanographic mission launched in August 1992, is the first earth satellite to carru a multi-channel, dual frequency GPS receiver capable of making high precision P-code pseudorange and carrier phase measurements. The receiver was placed on TOPEX/POSIEDON as an experiment to demonstrate the potential of differential GPS tracking for subdecimeter orbit determination. In addition to the receiver, TOPEX/POSIEDON carries two flight-proven tracking systems to provide the operational precise orbit determination needed to meet the mission scientific requirements. These include a French-built one-way Doppler system known as DORIS and a circular ring of laser retroreflectors. Here we evaluate the quality of the GPS-determined orbits by examining post-fit residuals, orbit comparisons with DORIS, and orbit repeatability on overlapping data arcs. Overlapping data arcs with 6 hours of common data out of a 30-hour arc have an average RMS altitude difference of 3.0 cm for 9 arcs. The average RMS altitude difference about the mean with a DORIS orbit was 5.7 cm. Numéro de notice : 61696 Affiliation des auteurs : LAREG+Ext (1991-2011) Thématique : POSITIONNEMENT Nature : Communication nature-HAL : ComSansActesPubliés-Unpublished DOI : sans En ligne : https://space-flight.org/AAS_meetings/1993_winter/abstracts/93-154.html Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=64816 Exemplaires(3)
Code-barres Cote Support Localisation Section Disponibilité 61696-01 21.10 Tiré à part Centre de documentation Technologies spatiales Disponible 61696-02 21.10 Tiré à part Centre de documentation Technologies spatiales Disponible 61696-03 7D Livre SGM K001 Exclu du prêt
