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vol 64 n° 3 - May - June 2009 - Image analysis and image engineering in close range photogrammetry (Bulletin de ISPRS Journal of photogrammetry and remote sensing) / Hans-Gerd Maas
[n° ou bulletin]
est un bulletin de ISPRS Journal of photogrammetry and remote sensing / International society for photogrammetry and remote sensing (1980 -) (1990 -)
Titre : vol 64 n° 3 - May - June 2009 - Image analysis and image engineering in close range photogrammetry Type de document : Périodique Auteurs : Hans-Gerd Maas, Éditeur scientifique ; T. Luhmann, Éditeur scientifique ; International society for photogrammetry and remote sensing (1980 -), Auteur Année de publication : 2009 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Photogrammétrie
[Termes IGN] acquisition d'images
[Termes IGN] analyse d'image numérique
[Termes IGN] caméra numérique
[Termes IGN] contrainte géométrique
[Termes IGN] précision géométrique (imagerie)
[Termes IGN] stabilité dimensionnelle
[Termes IGN] télémétrie laser sur satelliteNuméro de notice : 081-0903 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Numéro de périodique En ligne : http://www.sciencedirect.com/science/journal/09242716/64/3 Format de la ressource électronique : URL sommaire Permalink : https://documentation.ensg.eu/index.php?lvl=bulletin_display&id=9979 [n° ou bulletin]Contient
- Close-range constrained image sequences / Juha Heikkinen in ISPRS Journal of photogrammetry and remote sensing, vol 64 n° 3 (May - June 2009)
- Crack measurement : development, testing and applications of an automatic image-based algorithm / L. Barazetti in ISPRS Journal of photogrammetry and remote sensing, vol 64 n° 3 (May - June 2009)
- An image engineering system for the inspection of transparent construction materials / Stefan Hinz in ISPRS Journal of photogrammetry and remote sensing, vol 64 n° 3 (May - June 2009)
- A hybrid measurement approach for close-range photogrammetry / Clive Simpson Fraser in ISPRS Journal of photogrammetry and remote sensing, vol 64 n° 3 (May - June 2009)
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Code-barres Cote Support Localisation Section Disponibilité 081-09031 SL Revue Centre de documentation Revues en salle Disponible Optimistic outlook for Galileo / G. Angrisano in GIM international, vol 23 n° 5 (May 2009)
[article]
Titre : Optimistic outlook for Galileo Type de document : Article/Communication Auteurs : G. Angrisano, Auteur ; E. Rowan, Auteur ; R. Haring, Auteur Année de publication : 2009 Article en page(s) : pp 6 - 13 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie spatiale
[Termes IGN] European Geostationary Navigation Overlay Service
[Termes IGN] Galileo
[Termes IGN] Global Navigation Satellite System
[Termes IGN] précision du positionnement
[Termes IGN] signal GPSRésumé : (Auteur) This month we bring you an extended interview with engineer Perdo Pedreira, executive director of the European Global Navigation Satellite System Supervisory Authority (GSA). Since July 2005, the body charged with managing the development phase of the much-troubled European Satellite navigation system Galileo, its anticipated economic benefits, in terms of revenue, employment and expanding markets, are many. Galileo is being funded by the EU taxpayer, so it is important that these benefits be realised. Copyright Reed Business Numéro de notice : A2009-243 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29873
in GIM international > vol 23 n° 5 (May 2009) . - pp 6 - 13[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 061-09051 RAB Revue Centre de documentation En réserve L003 Disponible Synthetic aperture GPS signal processing: concept and feasibility demonstration / A. Soloviev in Inside GNSS, vol 4 n° 3 (May - June 2009)
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Titre : Synthetic aperture GPS signal processing: concept and feasibility demonstration Type de document : Article/Communication Auteurs : A. Soloviev, Auteur ; F. Van Graas, Auteur ; et al., Auteur Année de publication : 2009 Article en page(s) : 12 p. ; pp 37 - 46 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de géodésie spatiale
[Termes IGN] antenne synthétique
[Termes IGN] atmosphère terrestre
[Termes IGN] brouillage
[Termes IGN] étude de faisabilité
[Termes IGN] interférence
[Termes IGN] signal GPS
[Termes IGN] traitement du signalRésumé : (Auteur) In addition to positioning, navigation and timing, GPS turns out to be a useful sensor for studies of the Earth’s atmosphere. Synthetically generated, phased-array antennas can process GPS signals to create large antenna apertures. The resulting narrow-beam generation capabilities mitigate interference and jamming and produce high-resolution radar images — which could lead to interesting civil and military applications. Copyright Gibbons Media & Research LLC Numéro de notice : A2009-661 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=33567
in Inside GNSS > vol 4 n° 3 (May - June 2009) . - 12 p. ; pp 37 - 46[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 159-09031 SL Revue Centre de documentation Revues en salle Disponible Documents numériques
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Synthetic aperture GPS ... - scanAdobe Acrobat PDF The WAAS L5 signal: an assessment of its behavior and potential end use / H. Rho in GPS world, vol 20 n° 5 (May 2009)
[article]
Titre : The WAAS L5 signal: an assessment of its behavior and potential end use Type de document : Article/Communication Auteurs : H. Rho, Auteur ; R.B. Langley, Auteur Année de publication : 2009 Article en page(s) : pp 42 - 48 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement du signal
[Termes IGN] signal GPS
[Termes IGN] signal multidimensionnel
[Termes IGN] test de performance
[Termes IGN] Wide Area Augmentation SystemRésumé : (Auteur) The recent launch of the GPS Block IIR-20(M) satellite and the commissioning of its L5 demonstration payload herald the beginning of a bright new era in space-based positioning, navigation, and timing. The new satellite signal is anticipated to provide better-quality range measurements and possibly improve the tracking performance of a GPS receiver compared with current civil L1 and L2 signals through use of improved signal structures. The L5 signal will be standard on the future Block IIF and Block III satellites.
However, some readers may be surprised to learn that L5 signals have been continuously transmitted by a pair of satellites for the past several years. The geostationary Earth-orbiting (GEO) satellites used by the U.S. Federal Aviation Administration's (FAA's) Wide Area Augmentation System to provide enhanced integrity and accuracy include not only an L1 payload but an L5 payload as well. While the WAAS L5 signals have been broadcast from space for some time, they did not come from a satellite in medium Earth orbit, and so it was necessary to include the demonstration payload on the GPS Block IIR-20(M) satellite to guarantee the L5 frequency filing with the International Telecommunication Union.
There are some differences between the WAAS L5 signals and the future fully fledged GPS L5 signals. The WAAS L5 signals only use a single-channel carrier (there is no quadrature or Q channel) and the data rate is 250 bits per second (bps) rather than 50 bps. The WAAS signals are actually generated on the ground and relayed through the GEOs using a "bent pipe" approach. The FAA uses the L5 signals, in conjunction with the L1 signals, to compute ionospheric delays as part of the closed-loop control of the broadcast signals.
Although the WAAS L5 signals are not yet intended for end users, can they be used now for positioning and navigation and, if so, are there any caveats? In this month's column, I am joined by one of my graduate students, Hyun-ho Rho, who has looked at the WAAS L5 transmissions, examining their signal strengths, multipath characteristics, and instrumental bias issues. Precise positioning performance of WAAS pseudoranges has also been assessed as an independent check on instrumental bias compensation by the WAAS control segment. The favorable results point to a future of the L5 signal, on both the WAAS satellites and the next-generation GPS satellites, which is bright indeed. Copyright Questex Media GroupNuméro de notice : A2009-178 Affiliation des auteurs : non IGN Thématique : IMAGERIE/POSITIONNEMENT Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29808
in GPS world > vol 20 n° 5 (May 2009) . - pp 42 - 48[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 067-09051 SL Revue Centre de documentation Revues en salle Disponible Effect of the satellite laser ranging network distribution on geocenter motion estimation / Xavier Collilieux in Journal of geophysical research : Solid Earth, Vol 114 n° B4 (April 2009)
[article]
Titre : Effect of the satellite laser ranging network distribution on geocenter motion estimation Type de document : Article/Communication Auteurs : Xavier Collilieux , Auteur ; Zuheir Altamimi , Auteur ; Jim Ray, Auteur ; X. Wu, Auteur Année de publication : 2009 Article en page(s) : 17 p. Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Systèmes de référence et réseaux
[Termes IGN] fonction de Green
[Termes IGN] géocentre
[Termes IGN] masse de la Terre
[Termes IGN] série temporelle
[Termes IGN] télémétrie laser sur satelliteRésumé : (auteur) SLR network translations estimated between a quasi-instantaneous station position set, theoretically expressed with respect to the center of mass of the Earth (CM), and a secular reference frame are the signature of the motion of the CM with respect to the Earth crust. Geocenter motion is defined here to be the motion of the CM with respect to the geometric center of the solid Earth surface (CF). SLR translational variations cannot be rigorously interpreted as identical to geocenter motion due to the sparse and nonuniform distribution of the SLR network. Their difference is called the network effect, which should be dominated at subdecadal timescales by loading signals.We have computed translation time series of the SLR network using two independent geophysically based loading models. One is a displacement model estimated from surface fluid data (Green’s function approach), called forward model, and the other is a displacement model estimated from GPS and ocean bottom pressure (OBP) data, called inverse model. The translation models have been subtracted from their respective geocenter motion models computed from degree-1 mass load coefficients in order to evaluate their network effect biases. Scatter due to the SLR network effect is at the level of 1.5 mm RMS. It could slightly shift the phase of the annual SLR geocenter motion estimate by less than 1 month and could affect X and Z annual geocenter motion amplitudes at the 1-mm level, which is about one third of the expected signal. Two distinct methods are suggested to account for network effect when comparing SLR translations to geocenter motion models. The first is to add the network effect term predicted by a displacement model to the geocenter motion loading model. The second relies on an adequate combination of SLR and GPS products to estimate SLR translation that could be better compared with geocenter motion. Numéro de notice : A2009-531 Affiliation des auteurs : IGN+Ext (1940-2011) Thématique : POSITIONNEMENT Nature : Article DOI : 10.1029/2008JB005727 Date de publication en ligne : 07/04/2009 En ligne : http://dx.doi.org/10.1029/2008JB005727 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=83525
in Journal of geophysical research : Solid Earth > Vol 114 n° B4 (April 2009) . - 17 p.[article]Documents numériques
en open access
Effect of the satellite laser ranging networkAdobe Acrobat PDF Development of data infrastructure to support scientific analysis for the International GNSS Service / Carey E. Noll in Journal of geodesy, vol 83 n° 3-4 (March - April 2009)PermalinkEPN reference frame alignment: consistency of the station positions / Juliette Legrand in Bulletin of geodesy and geomatics BGG, vol 68 n° 1 (March 2009)PermalinkLe marégraphe de Marseille : patrimoine et modernité / Alain Coulomb in XYZ, n° 118 (mars - mai 2009)PermalinkMonitoring storm-enhanced density using IGS reference station data / Anthea Coster in Journal of geodesy, vol 83 n° 3-4 (March - April 2009)PermalinkTesting of Global Pressure-Temperature (GPT) Model and Global Mapping Function (GMF) in GPS analyses / Jan Kouba in Journal of geodesy, vol 83 n° 3-4 (March - April 2009)PermalinkThe effects of navigation sensors and spatial road network data quality on the performance of map matching algorithms / M. Quddus in Geoinformatica, vol 13 n° 1 (March 2009)PermalinkThe International Global navigation satellite systems Service (IGS): development and achievements / Gerhard Beutler in Journal of geodesy, vol 83 n° 3-4 (March - April 2009)Permalinkvol 83 n° 3-4 - March - April 2009 - The International GNSS Service (IGS) in a changing landscape of Global Navigation Satellite Systems (Bulletin de Journal of geodesy) / R. KleesPermalinkApplications envisagées pour Galileo / Jonathan Chenal (2009)PermalinkPermalink