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Satellite geodesy : foundations, methods and applications / Günter Seeber (2003)
Titre : Satellite geodesy : foundations, methods and applications Type de document : Guide/Manuel Auteurs : Günter Seeber, Auteur Mention d'édition : 2nd completely revised and extended edition Editeur : Berlin, New York : Walter de Gruyter Année de publication : 2003 Importance : 590 p. Format : 18 x 25 cm ISBN/ISSN/EAN : 978-3-11-017549-3 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie spatiale
[Termes IGN] DORIS
[Termes IGN] effet Doppler
[Termes IGN] géodésie spatiale
[Termes IGN] Global Orbitography Navigation Satellite System
[Termes IGN] Global Positioning System
[Termes IGN] GPS en mode cinématique
[Termes IGN] interférométrie à très grande base
[Termes IGN] mesurage d'effet Doppler
[Termes IGN] orbitographie
[Termes IGN] positionnement cinématique
[Termes IGN] positionnement différentiel
[Termes IGN] positionnement par géodésie spatiale
[Termes IGN] problème des deux corps
[Termes IGN] propagation du signal
[Termes IGN] satellite artificiel
[Termes IGN] signal GPS
[Termes IGN] système de référence géodésique
[Termes IGN] télémétrie laser
[Termes IGN] télémétrie laser sur la Lune
[Termes IGN] temps atomique international
[Termes IGN] TransitIndex. décimale : 30.60 Géodésie spatiale Résumé : (documentaliste) Vue générale et systématique des concepts fondamentaux tels que système de référence, temps, propagation du signal et orbites des satellites, des méthodes telles que Transit doppler, GPS, etc. applicables à la géodésie spatiale Note de contenu : 1. Introduction
2. Fundamentals
3. Satellite orbital motion
4. Basic observation concepts and satellites used in geodesy
5. Optical methods for the determination of directions
6. Doppler techniques
7. The global positioning system (GPS)
8. Laser Ranging
9. Satellite altimetry
10. Gravity field missions
11. Related space techniques
12. Overview and applicationsNuméro de notice : 12162 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Manuel de cours DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=54565 Exemplaires(2)
Code-barres Cote Support Localisation Section Disponibilité 12162-01 30.60 Livre Centre de documentation Géodésie Disponible 12162-02 DEP-RECG Livre Marne-la-Vallée Dépôt en unité Exclu du prêt Zur Automation berührungsloser 3D-Objekterfassung im Nahbereich / M. Hovenbitzer (2003)
Titre : Zur Automation berührungsloser 3D-Objekterfassung im Nahbereich Titre original : [L'automatisation de la saisie d'objet 3D à distance] Type de document : Thèse/HDR Auteurs : M. Hovenbitzer, Auteur Editeur : Munich : Bayerische Akademie der Wissenschaften Année de publication : 2003 Collection : DGK - C Sous-collection : Dissertationen num. 556 Importance : 82 p. Format : 21 x 30 cm ISBN/ISSN/EAN : 978-3-7696-9595-3 Note générale : Bibliographie Langues : Allemand (ger) Descripteur : [Vedettes matières IGN] Photogrammétrie terrestre
[Termes IGN] analyse comparative
[Termes IGN] détecteur à transfert de charge
[Termes IGN] données localisées 3D
[Termes IGN] étalonnage d'instrument
[Termes IGN] instrument de mesure
[Termes IGN] lasergrammétrie
[Termes IGN] photogrammétrie architecturale
[Termes IGN] photogrammétrie métrologique
[Termes IGN] primitive géométrique
[Termes IGN] primitive volumique
[Termes IGN] semis de points
[Termes IGN] tachéomètre électronique
[Termes IGN] télémétrie laser terrestreIndex. décimale : 33.70 Photogrammétrie terrestre Résumé : (Auteur) This thesis describes the realization and the calibration of two measurement systems, which are designed for measuring contactless three dimensional object points in close range. A well adapted way of data processing is presented, which shows the reduction from a large amount of object points to geometric parameters of object surfaces. First the possible applications for such systems are shown. The spectrum ranges from the interior scanning for facility management systems over documentations of archaeological excavations to virtual representations of buildings for purposes of the real estatetrade. Afterwards the existing up to date systems for measuring three dimensional coordinates in close range are described.
The two developed measuring systems are described in detail. First the system Hybmess is introduced. The system is based on a standard motorized tacheometer. An additional CCDLinecamera is attached to the tacheometer below the telescope. The tacheometer is controlled by a computer to allow automatic positioning of the tacheometer and thus the camera. A projection unit is also mounted on the tacheometer. Structured light patterns are used to determine the object coordinates by intersection. The necessary Graycode patterns are projected by a laser beam deflected by a rotating prism. The interpretation of all projected patterns leads to a binary code for the last and most important pattern. This binary code contains the angle information which is necessary for calculating the intersection.
The second measuring system MLMS determines the coordinates of surface points by reflectorless distance measurement. The base sensor of the measuring system is the unit LMS 200 of the SICK company. This sensor is able to measure fanshaped distances with an apex angle of 180'. The sensor measures with the time of flight principle. A motorized rotation stage turns the base sensor around the vertical axis, so that a three dimensional scanning of the object is possible.
The processing of the measured data starts with the visualization of the scatterplot and results in a specification of the geometric parameters of the object. Two forms of visualization have been developed, which were well adapted to the measuring systems. The first form is the winding off visualization. Corresponding to the angle grid of the measurement system a picture is calculated, in which the local minima and maxima of the distances are marked with white dots. The second form of visualization is the perspective one. The gray value of the pixel depends on the distance between the central point and the object points. Because of the great amount of object points, the shapes of the object have to be extracted from the point cloud. For automatic respectively semiautomatic extraction of plains, spheres and cylinders algorithms have been developed. The intersection of these geometric shapes are corners or edges of the object. For scanning larger objects the combination of several instrument positions is necessary. The identical points can be the centers of measured spheres or the intersections of three measured plains. Mostly for the documentation of the object additional digital images are taken or the measurement system produces a digital image during the process of measuring. This additional information can be used for texturemapping the CADmodel of the object, or for measuring hidden objects or small details. The accuracy and precision of the new measuring systems is studied on some selected geometric objects. The scanning of interiors is an example for the presented way to combine several instrument positions.Numéro de notice : 13160 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Thèse étrangère Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=54897 Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 13160-01 33.70 Livre Centre de documentation Photogrammétrie - Lasergrammétrie Disponible Soil moisture estimation from ERS-SAR data: toward an operational methodology / Sylvie Le Hégarat-Mascle in IEEE Transactions on geoscience and remote sensing, vol 40 n° 12 (December 2002)
[article]
Titre : Soil moisture estimation from ERS-SAR data: toward an operational methodology Type de document : Article/Communication Auteurs : Sylvie Le Hégarat-Mascle, Auteur ; Mehrez Zribi, Auteur ; F. Alem, Auteur ; A. Weisse, Auteur ; C. Loumagne, Auteur Année de publication : 2002 Article en page(s) : pp 2647 - 2658 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image radar et applications
[Termes IGN] bassin hydrographique
[Termes IGN] étalonnage radiométrique
[Termes IGN] humidité du sol
[Termes IGN] image ERS-SAR
[Termes IGN] image radar
[Termes IGN] radar imageur
[Termes IGN] réalité de terrain
[Termes IGN] surface cultivée
[Termes IGN] traitement d'imageRésumé : (Auteur) Previous studies have shown the possibility of using European Remote Sensing/Synthetic Aperture Radar (ERS/SAR) data to monitor surface soil moisture from space. The linear relationships between soil moisture and the SAR signal have been derived empirically and, thus, were a priori specific to the considered watershed. In order to overcome this limit, this study focused on two objectives. The first one was to validate over two years of data the empirical sensitivity of the radar signal to soil moisture, in the case of three agricultural watersheds with different soil compositions and land cover uses. The slope of the observed relationship was very consistent. Conversely, the offset could change, making the soil moisture retrieval only relative (and not absolute). The second one was to propose an "operational" methodology for soil moisture monitoring based on ERS/SAR data. The implementation of this methodology is based on two steps : the calibration period and the operational period. During the calibration period, ground truth campaigns are performed to measure vegetation parameters (to correct the SAR signal from the vegetation effect), and the ERS/SAR data is processed only once a field land cover map is established. In contrast, during the operational period, no vegetation field campaigns are performed, and the images are processed as soon as they are available. The results confirm the relevance of this operational methodology, since no loss of performance (in soil moisture retrieval) is observed between the calibration and operational periods. Numéro de notice : A2002-350 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1109/TGRS.2002.806994 En ligne : https://doi.org/10.1109/TGRS.2002.806994 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=22261
in IEEE Transactions on geoscience and remote sensing > vol 40 n° 12 (December 2002) . - pp 2647 - 2658[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 065-02121 RAB Revue Centre de documentation En réserve L003 Disponible New IGS clock products: a global time transfer assessment / Jim Ray in GPS world, vol 13 n° 11 (November 2002)
[article]
Titre : New IGS clock products: a global time transfer assessment Type de document : Article/Communication Auteurs : Jim Ray, Auteur ; K. Senior, Auteur Année de publication : 2002 Article en page(s) : pp 45 - 51 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie spatiale
[Termes IGN] étalonnage d'instrument
[Termes IGN] fréquence
[Termes IGN] Global Positioning System
[Termes IGN] horloge atomique
[Termes IGN] récepteur GPSRésumé : (Editeur) The International GPS Service (IGS) has a new suite of clock products available and is continuing to improve their usefulness for pratical time and frequency transfer applications. Here, the authors describe these IGS clock products, use internal repeatability analyses to assess their potential accuracy and stability limits, and compare them with the emerging requirements of the timekeeping community. They conclude that calibration of the internal delays in the GPS receiving equipment will probably continue to set the limit for time transfer accuracy, whereas frequency transfers can already achieve stabilities approaching 10-15 over one-day intervals. Numéro de notice : A2002-396 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=26420
in GPS world > vol 13 n° 11 (November 2002) . - pp 45 - 51[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 067-02111 SL Revue Centre de documentation Revues en salle Disponible Calculation of the calibration constant of polarization Lidar and its dependency on atmospheric temperature / Andreas Behrendt in Optics express, vol 10 n° 16 (12/08/2002)
[article]
Titre : Calculation of the calibration constant of polarization Lidar and its dependency on atmospheric temperature Type de document : Article/Communication Auteurs : Andreas Behrendt, Auteur ; Takuji Nakamura, Auteur Année de publication : 2002 Article en page(s) : 13 p. Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Lasergrammétrie
[Termes IGN] diffusion de Raman
[Termes IGN] étalonnage d'instrument
[Termes IGN] Lidar
[Termes IGN] longueur d'onde
[Termes IGN] polarisation
[Termes IGN] température de l'airRésumé : (Auteur) The volume depolarization ratio of the molecular backscatter signal detected with polarization lidar varies by a factor of nearly 4 depending on whether the rotational Raman bands are included in the detected signals of the individual system or not. If the rotational Raman spectrum is included partially in the signals, this calibration factor depends on the temperature of the atmosphere. This dependency is studied for different spectral widths of the receiving channels. In addition, the sensitivity to differences between the laser wavelength and the center wavelength of the receiver are discussed. Numéro de notice : A2002-401 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.1364/OE.10.000805 En ligne : https://doi.org/10.1364/OE.10.000805 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=33538
in Optics express > vol 10 n° 16 (12/08/2002) . - 13 p.[article]Cartographie des trafics / Julien Gaffuri in Le monde des cartes, n° 172 (juin - août 2002)PermalinkExperiences on operational GPS: inertial system calibration in airborne photogrammetry / Michael Cramer in GIS Geo-Informations-Systeme, vol 2002 n° 6 (Juni 2002)PermalinkGround-based laser scanners: operation, systems and applications / Derek D. Lichti in Geomatica, vol 56 n° 1 (March 2002)PermalinkRaman lidar for external GPS path delay calibration devoted to high accuracy height determination / Jérôme Tarniewicz in Physics and chemistry of the Earth (A/B/C), vol 27 n° 4-5 ([01/03/2002])PermalinkPermalinkPermalinkEtude de la qualité des éphémérides du satellite Landsat / C. Vergerpion (2002)PermalinkLa gravimétrie aéroportée en région montagneuse / Jérome Verdun (2002)PermalinkPermalinkPermalinkRapport de la 8ème session (avril 2002), Comité Consultatif pour la Quantité de Matière / Comité consultatif pour la quantité de matière (2002)PermalinkRapport de la 8ème session (mai 2002) / Comité consultatif pour la masse et les grandeurs apparentées (2002)PermalinkRapport du directeur sur l'activité et la gestion du Bureau international des poids et mesures BIPM (1er juillet 2000 - 30 juin 2001) / Bureau international des poids et mesures (2002)PermalinkRapport du directeur sur l'activité et la gestion du Bureau International des Poids et Mesures (BIPM) (1er juillet 2001 - 30 juin 2002) / Bureau international des poids et mesures (2002)PermalinkSaisie de la couverture neigeuse de sites avalancheux par des systèmes aéroportés / Julien Vallet (2002)PermalinkStatus of the SRTM data processing: when will the world-wild 30m DTM data be available? / M. Werner in GIS Geo-Informations-Systeme, vol 2001 n° 12 (Dezember 2001)PermalinkLa métrologie photogrammétrique numérique / F. Guillon in Géomètre, vol 2001 n° 11 (novembre 2001)PermalinkMonitoring GPS receiver and satellite clocks in real time: a network approach / François Lahaye in GPS world, vol 12 n° 11 (November 2001)PermalinkDigital image georeferencing from a multiple camera system by GPS-INS / M.M. Mostafa in ISPRS Journal of photogrammetry and remote sensing, vol 56 n° 1 (May - June 2001)PermalinkPermalink