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Estimating the noise in space-geodetic positioning: the case of DORIS / Karine Le Bail in Journal of geodesy, vol 80 n° 8-11 (November 2006)
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Titre : Estimating the noise in space-geodetic positioning: the case of DORIS Type de document : Article/Communication Auteurs : Karine Le Bail , Auteur
Année de publication : 2006 Article en page(s) : pp 541 - 565 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie spatiale
[Termes IGN] bruit blanc
[Termes IGN] bruit rose
[Termes IGN] données DORIS
[Termes IGN] ENVISAT
[Termes IGN] filtrage du bruit
[Termes IGN] méthode du maximum de vraisemblance (estimation)
[Termes IGN] positionnement par DORIS
[Termes IGN] série temporelle
[Termes IGN] SPOT
[Termes IGN] station DORIS
[Termes IGN] TOPEX-Poseidon
[Termes IGN] traitement du signalRésumé : (Auteur) The noise spectrum in DORIS ground-station motion is investigated by means of the Allan variance method applied to the decomposition of the 3D signal into its principal components in the time domain. Sets of weekly position time-series from 1994 to 2005 derived by three IDS Analysis Centres (IGN-JPL, INASAN, and LEGOS-CLS) for 119 stations at 69 sites are considered. The observing satellites are SPOT-2, SPOT-3, SPOT-4, and SPOT-5, TOPEX/Poseidon, and ENVISAT. Annual and semi-annual perturbations, as well as the 117.3-day term associated with the TOPEX/Poseidon orbit, are found at most stations. Their amplitudes reach up to 19.3, 23.7, and 13.3 mm, respectively, for the three analysis centres (ACs). When corrected for these components and a linear drift, the time-series dominantly show white noise (WN) at the 10-45mm level the noise level is the highest in the East direction, probably in connection with the high orbit inclinations. The noise level is minimum for the high latitude stations, mostly and intensively observed by the SPOT satellites, and the determination of the noise type is unclear; longer observation spans would be needed to decide between interannual variations and flicker noise. The improvement in positioning due to the DORIS constellation extension from three to five satellites in 2002, and the network rejuvenation program initiated in 2000, results in a decrease of the noise level by a factor of 1.7 in a WN context, both before and after the changes. One example of the benefit of studying the signal in the time eigenspace domain is the detection of anomalously large WN in the East direction for station HBKB (Hartebeesthoek, Africa) that masks the above-mentioned improvement. Studying the projection on the local frame of the second and third time-eigenspace components, a noise excess is detected in the North direction for some of the ACs. Station stability derived from our time-series analysis confirms, in general, the expected performance based on the careful technical review of the station components (antenna, pillar, etc.). The respective merits of our noise qualification method, based on direct time-series analysis in the time-eigenspace domain without any a priori statistical model, in comparison with other methods, such as the selection of a mixed-noise model by maximum likelihood estimation, are discussed. Copyright Springer Numéro de notice : A2006-535 Affiliation des auteurs : IGN (1940-2011) Thématique : POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1007/s00190-006-0088-y En ligne : https://doi.org/10.1007/s00190-006-0088-y Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28258
in Journal of geodesy > vol 80 n° 8-11 (November 2006) . - pp 541 - 565[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 266-06102 RAB Revue Centre de documentation En réserve L003 Disponible 266-06101 RAB Revue Centre de documentation En réserve L003 Disponible Geocentre motion measured with DORIS and SLR, and predicted by geophysical models / Martine Feissel-Vernier in Journal of geodesy, vol 80 n° 8-11 (November 2006)
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Titre : Geocentre motion measured with DORIS and SLR, and predicted by geophysical models Type de document : Article/Communication Auteurs : Martine Feissel-Vernier , Auteur ; Karine Le Bail
, Auteur ; P. Beriot, Auteur ; David Coulot
, Auteur ; et al., Auteur
Année de publication : 2006 Article en page(s) : pp 637 - 648 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie physique
[Termes IGN] données TLS (télémétrie)
[Termes IGN] géocentre
[Termes IGN] géophysique interne
[Termes IGN] positionnement par DORISRésumé : (Auteur) Geocentre motion signals measured by satellite geodesy and those predicted from the observed mass redistribution in the ocean, atmosphere and terrestrial waters over 1993.1–2003.0 are analysed and compared under two viewpoints: the amplitudes and phases of the seasonal components, and the spectral signature of the non-seasonal components. The geodetic signals partly match the geophysical variations in the seasonal band, with possible remaining annual and semi-annual errors in both techniques, at the millimetre level in the equatorial plane for Satellite laser ranging (SLR) and Doppler Orbitography and radiopositioning integrated on Satellite (DORIS), and at the centimetre level in T z (Z-axis translation) for DORIS. Unlike SLR, the DORIS annual signatures in all three geocentre components have strongly varying amplitudes after 1996. The amplitude of the annual geophysical signal in T y is slowly growing with time. All three geophysical fluids contribute to this effect. The magnitude of the geophysically derived long-term geocentre motion is of the same magnitude in the T x , T y and T z directions, with a 0.5–1.0 mm Allan standard deviation for the 1-year sampling time, while the geodetic values are 2 mm in the equatorial plane for both SLR and DORIS, 4 mm for SLR and 9 mm for DORIS in the T z direction. The mismatch of the geodetic signal with the geophysical one in the inter-annual band is suggested to be due partly to excessive geodetic noise and partly to underestimated geophysical signal. Numéro de notice : A2006-648 Affiliation des auteurs : IGN+Ext (1940-2011) Thématique : POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1007/s00190-006-0079-z En ligne : https://doi.org/10.1007/s00190-006-0079-z Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=31334
in Journal of geodesy > vol 80 n° 8-11 (November 2006) . - pp 637 - 648[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 266-06102 RAB Revue Centre de documentation En réserve L003 Disponible 266-06101 RAB Revue Centre de documentation En réserve L003 Disponible GPS time transfer: using precise point positioning for clock comparisons / François Lahaye in GPS world, vol 17 n° 11 (November 2006)
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Titre : GPS time transfer: using precise point positioning for clock comparisons Type de document : Article/Communication Auteurs : François Lahaye, Auteur ; D. Orgiazzi, Auteur ; P. Tavella, Auteur ; G. Cerretto, Auteur Année de publication : 2006 Article en page(s) : pp 44 - 49 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie spatiale
[Termes IGN] analyse comparative
[Termes IGN] Global Positioning System
[Termes IGN] mesurage de pseudo-distance
[Termes IGN] phase GPS
[Termes IGN] positionnement ponctuel précis
[Termes IGN] récepteur bifréquence
[Termes IGN] récepteur GPS
[Termes IGN] temps atomique internationalRésumé : (Documentaliste) Les auteurs relatent les résultats d'une expérience menée avec la méthode de transfert de temps "Precise Point Positioning PPP" de post-traitement des données GPS par comparaison avec les mesures de transfert de temps et fréquence du satellite par 2 voies (Two-Way Satellite Time and Frequency Transfer TWSTFT). La méthode PPP permet une précision au niveau de la nano-seconde, sans avoir recours au réseau des stations. Numéro de notice : A2006-474 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28198
in GPS world > vol 17 n° 11 (November 2006) . - pp 44 - 49[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 067-06111 RAB Revue Centre de documentation En réserve L003 Disponible IGI'S airborne systems: an expanded product range! / Gordon Petrie in Geoinformatics, vol 9 n° 7 (01/11/2006)
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Titre : IGI'S airborne systems: an expanded product range! Type de document : Article/Communication Auteurs : Gordon Petrie, Auteur Année de publication : 2006 Article en page(s) : pp 36 - 41 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s)
[Termes IGN] caméra numérique
[Termes IGN] capteur aérien
[Termes IGN] GPS-INS
[Termes IGN] télémétrie laser aéroportéRésumé : (Auteur) IGI is a small but innovative German high-technology company that, for over twenty years, has been in the forefront of the development of computer-based flight navigation, guidance and management systems for use in airborne survey and mapping missions. However, recently the company has extended its activities into the development of airborne digital cameras and airborne and ground-based laser scanning systems. The products resulting from this development have started to make a significant impact within these fields, while, at the same time, the company has retained its major presence in the area of in-flight positioning, navigation, guidance and sensor management systems. Copyright GEOinformatics Numéro de notice : A2006-480 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28204
in Geoinformatics > vol 9 n° 7 (01/11/2006) . - pp 36 - 41[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 262-06071 SL Revue Centre de documentation Revues en salle Disponible OS net: positioning accuracy at the heart of Great Britain / P. Cruddace in Geomatics World, vol 15 n° 1 (01/11/2006)
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Titre : OS net: positioning accuracy at the heart of Great Britain Type de document : Article/Communication Auteurs : P. Cruddace, Auteur Année de publication : 2006 Article en page(s) : pp 22 - 25 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Systèmes de référence et réseaux
[Termes IGN] diffusion par internet
[Termes IGN] Grande-Bretagne
[Termes IGN] positionnement par GPS
[Termes IGN] réseau géodésique permanent
[Termes IGN] station GPSRésumé : (Editeur) Geodetic Adviser to Britain's Ordnance Survey, Paul Cruddace describes the development and testing of Britain's new geodetic infrastructure and some current and potential future applications. Numéro de notice : 15381 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=33661
in Geomatics World > vol 15 n° 1 (01/11/2006) . - pp 22 - 25[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 15381-01 30.10 Tiré à part Centre de documentation Géodésie Disponible Plate kinematic of Nubia-Somalia using combined DORIS and GPS solution / Jean-Mathieu Nocquet in Journal of geodesy, vol 80 n° 8-11 (November 2006)
PermalinkReview Magellan promark-3: three GPS solutions in one / Huibert-Jan Lekkerkerk in Geoinformatics, vol 9 n° 7 (01/11/2006)
PermalinkTracking first responders: integrated Nav with software-defined radio (SDR) / A. Brown in GPS world, vol 17 n° 11 (November 2006)
PermalinkTwenty 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)
PermalinkDam stability: assessing the performance of a GPS monitoring system / D. Rutledge in GPS world, vol 17 n° 10 (October 2006)
PermalinkEuPos positoning / A. Blaser in GEO: Geoconnexion international, vol 5 n° 10 (november - december2006)
PermalinkA new combined European permanent network station coordinates solution / Natalia Panafidina in Journal of geodesy, vol 80 n° 7 (October 2006)
PermalinkRigorous approach to bore-sight self-calibration in airborne laser scanning [erratum in vol 61 n° 6 February 2007, pages 414-415] / Jan Skaloud in ISPRS Journal of photogrammetry and remote sensing, vol 61 n° 1 (October 2006)
PermalinkPermalinkGood governance, good geo-info / Martien Molenaar in GIM international, vol 20 n° 9 (September 2006)
PermalinkPhase wind-up analysis: assessing real-time kinematic performance / D. Kim in GPS world, vol 17 n° 9 (September 2006)
PermalinkPrecise orbit determination for the GRACE mission using only GPS data / Z. Kang in Journal of geodesy, vol 80 n° 6 (September 2006)
PermalinkGNSS update: positive and negative developments / Huibert-Jan Lekkerkerk in Geoinformatics, vol 9 n° 5 (01/07/2006)
PermalinkGPS + LORAN-C: performance analysis of an integrated tracking system / J. Carroll in GPS world, vol 17 n° 7 (July 2006)
PermalinkPermalinkApproximate direct georeferencing in national coordinates / Klaus Legat in ISPRS Journal of photogrammetry and remote sensing, vol 60 n° 4 (June - July 2006)
PermalinkFirst nationalwide high-density GPS RTK network in the Netherlands: geographic expansion possible / M. Van Der Wolk in Geoinformatics, vol 9 n° 4 (01/06/2006)
PermalinkMicro géodésie pour le guidage de coffrage des murs porteurs d'immeubles "tours" / I.R. Sparks in XYZ, n° 107 (juin - août 2006)
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