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Analytische Störungsrechnung mit ANALYTOS / O. Meyer (1999)
Titre : Analytische Störungsrechnung mit ANALYTOS Titre original : [Calcul analytique des perturbations avec ANALYTOS] Type de document : Thèse/HDR Auteurs : O. Meyer, Auteur Editeur : Munich : Bayerische Akademie der Wissenschaften Année de publication : 1999 Collection : DGK - C Sous-collection : Dissertationen num. 507 Importance : 85 p. Format : 21 x 30 cm ISBN/ISSN/EAN : 978-3-7696-9546-5 Note générale : Bibliographie Langues : Allemand (ger) Descripteur : [Vedettes matières IGN] Techniques orbitales
[Termes IGN] groupe de Lie
[Termes IGN] Lageos
[Termes IGN] mécanique céleste
[Termes IGN] orbite
[Termes IGN] orbitographieRésumé : (Auteur) The subject of this dissertation is the computer program ANALYTOS which performs analytical calculation of pertubations. Following a description of the Lie-series methods used in the program and its most important elements, possible uses are demonstrated using examples from planetary and satellite motion theory. Results of the analytical calculation of pertubations of satellite motion using ANALYTOS are compared with highly accurate numerically integrated ephemerides taking the geodesic satellite LAGEOS as an example. The appendix contains a complete set of commands for ANALYTOS. Furthermore, a program is presented to calculate the orbit of a satellite. Numéro de notice : 56365 Affiliation des auteurs : non IGN Thématique : IMAGERIE/POSITIONNEMENT Nature : Thèse étrangère Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=60011 Réservation
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Code-barres Cote Support Localisation Section Disponibilité 56365-01 21.10 Livre Centre de documentation Technologies spatiales Disponible 56365-02 21.10 Livre Centre de documentation Technologies spatiales Disponible Beschreibung von Deformationsprozessen durch Volterra- und Fuzzy-Modelle sowie neuronale Netze / K. Heine (1999)
Titre : Beschreibung von Deformationsprozessen durch Volterra- und Fuzzy-Modelle sowie neuronale Netze Titre original : [Description du processus de déformation au travers du modèle Volterra et de la logique floue comme les réseaux neuronaux] Type de document : Thèse/HDR Auteurs : K. Heine, Auteur Editeur : Munich : Bayerische Akademie der Wissenschaften Année de publication : 1999 Collection : DGK - C Sous-collection : Dissertationen num. 516 Importance : 111 p. Format : 21 x 30 cm ISBN/ISSN/EAN : 978-3-7696-9554-0 Note générale : Bibliographie Langues : Allemand (ger) Descripteur : [Vedettes matières IGN] Géodésie physique
[Termes IGN] Déformation
[Termes IGN] logique floue
[Termes IGN] modèle de déformation tectonique
[Termes IGN] réseau neuronal artificielIndex. décimale : 30.40 Géodésie physique Résumé : (Auteur) The analysis of the cause-effect-relation of deformation processes is possible by input-output-models on condition that time series of the acting forces and the deformation are available. The description of the process can be realised as well by classical methods like the VOLTERRA-model as by Artificial Neural Networks and Fuzzy models which lately became more and more important in system analysis. The modelling of the deformation process should be comprehended as an process orientated by the objective of the description. That means that the suitability of the several modelling methods for a specific deformation process is to be examined and should the occasion arise a combination of the several methods leeds to an optimised model considering the modelling objective. Numéro de notice : 57782 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Thèse étrangère Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=60273 Réservation
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Code-barres Cote Support Localisation Section Disponibilité 57782-01 30.40 Livre Centre de documentation Géodésie Disponible Dreidimensionale Objektrekonstruktion mit digitalen Dreizeilenscannerdaten des Weltraumprojekts MOMS-02/D2 / W. Kornus (1999)
Titre : Dreidimensionale Objektrekonstruktion mit digitalen Dreizeilenscannerdaten des Weltraumprojekts MOMS-02/D2 Titre original : [Reconstruction d'objets en 3D avec des données numérisées du projet mondial MOMS-02/D2] Type de document : Thèse/HDR Auteurs : W. Kornus, Auteur Editeur : Munich : Bayerische Akademie der Wissenschaften Année de publication : 1999 Collection : DGK - C Sous-collection : Dissertationen num. 496 Importance : 96 p. Format : 21 x 30 cm ISBN/ISSN/EAN : 978-3-7696-9535-9 Note générale : Bibliographie Langues : Allemand (ger) Descripteur : [Vedettes matières IGN] Photogrammétrie numérique
[Termes IGN] capteur en peigne
[Termes IGN] compensation
[Termes IGN] erreur systématique
[Termes IGN] étalonnage de capteur (imagerie)
[Termes IGN] image Spacelab-MOMS
[Termes IGN] reconstruction 3D du bâtiIndex. décimale : 33.30 Photogrammétrie numérique Résumé : (Auteur) MOMS-02 is a pushbroom multi-line scanner developed at the German company Daimler-Benz Aerospace AG (Dasa) for digital, high resolution, threefold stereoscopic and multispectral image data acquisition of the Earth's surface from space. During the German spacelab mission D2 MOMS-02 recorded imagery of approximately 7.000.000 km2 from 300 km altitude with a ground pixel size of 4.5 m and 13.5 m. After the D2 mission MOMS-02 was refurbished to be reoperated on the Russian space station MIR. With the modified designation MOMS-2P it is attached to the remote sensing MIR-module PRIRODA since May 1996.
The thesis describes the development of a procedure for highly accurate three-dimensional object reconstruction using digital three-line scanner imagery of the MOMS camera. This involves the appropriate extension of the functional model by considering the specific geometric characteristics of MOMS, the application of the new functional model and also its verification using synthetical and practical data. The geometric calibration of the scanner sets up a further point of emphasis due to its direct influence on the accuracy of the three-dimensional object reconstruction.
The first chapter gives a survey of the most important existing and already completed three-line scanner projects, including MOMS-02/D2 and MOMS-2P/PRIRODA, to outline the state-of-the-art of three-line technology. Next, the extensions of the functional model for the reconstruction of both the interior and the exterior orientation are described. As far as the interior orientation is concerned, the new approach rigorously models the geometric relations between the different optics pointing in three directions. For the reconstruction of the exterior orientation the so far existing linear model is replaced by a general higher degree polynomial approach, which is capable to suitably approximate short orbit arcs (1-2 minutes) of satellites or manned space vehicles like the space shuttle or the space station MIR. Optionally systematic errors in the observed parameters of the exterior orientation can simultaneously be estimated in the adjustment. By extensive computer simulations the overall accuracy of point determination is investigated and its dependency on standard deviations of the input data and on various system-, model-, and other geometric parameters is analysed. From the results geometric relations and requirements for a complete exhaustion of the MOMS-02 accuracy potential are deduced, implying helpful information e.g. for the definition of possible future three-line scanner systems.
The geometric calibration procedure in the Dasa-laboratories is described and the resulting provided calibration data set is given. In a separate evaluation using the newest calibration measurements for the MOMS-2P/PRIRODA project an other calibration data set is deduced, which is in accordance to the extended functional model of the interior orientation. Among the navigation data, the ground coordinates of control points and the image coordinates of tie points, the calibration data build one of four observation groups, which simultaneously are considered in the bundle adjustment. Since all the groups originate from different sources, they first have to be analysed and pre-processed in order to obtain a homogeneous input data set. Subsequently the extended functional approach is applied using practical MOMS-02/D2 imagery and auxiliary data in a combined photogrammetric bundle adjustment. In the process the appearing uncertainties and inconsistencies of the input data are considered as far as possible. As a result 44 independent check points, derived by GPS ground measurements, proved an empirical height accuracy of 4.1 m. Compared to the mission requirement of 5 m height accuracy the performance of the new approach is expressively demonstrated. Finally the results are discussed and compared with the outcome of similar evaluations derived at other places.
From the experiences of the practical evaluation it can be concluded, that the geometric calibration data set, gained in the laboratory, is not practically applicable, or at least only to some extent, due to different conditions in the space environment. Therefore in a separate chapter the question is discussed, how far the camera parameters can be determined in-orbit by photogrammetric methods using precise ground control. By computer simulations the theoretical standard deviations of different camera parameter sets are analysed dependent on different control point distributions for single strip evaluation and also for the simultaneous adjustment of two intersecting strips. Finally a summarising discussion and an outlook towards forthcoming and planned stereo-line scanner missions is given.Numéro de notice : 46109 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Thèse étrangère Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=58469 Réservation
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Code-barres Cote Support Localisation Section Disponibilité 46109-01 33.30 Livre Centre de documentation Photogrammétrie - Lasergrammétrie Disponible 46109-02 33.30 Livre Centre de documentation Photogrammétrie - Lasergrammétrie Disponible Funktionalität des internetbasierten 3D-Campus-Informationssystems der Universität Karlsruhe (CISKA) / S. Landes (1999)
Titre : Funktionalität des internetbasierten 3D-Campus-Informationssystems der Universität Karlsruhe (CISKA) Titre original : [Fonctionnalité du système d'information 3D basé sur internet de l'université de Carlsruhe] Type de document : Thèse/HDR Auteurs : S. Landes, Auteur Editeur : Munich : Bayerische Akademie der Wissenschaften Année de publication : 1999 Collection : DGK - C Sous-collection : Dissertationen num. 513 Importance : 89 p. Format : 21 x 30 cm ISBN/ISSN/EAN : 978-3-7696-9551-9 Note générale : Bibliographie Langues : Allemand (ger) Descripteur : [Vedettes matières IGN] Systèmes d'information géographique
[Termes IGN] Carlsruhe
[Termes IGN] internet
[Termes IGN] milieu urbain
[Termes IGN] réalité virtuelle
[Termes IGN] système d'information géographique
[Termes IGN] visualisation 3DRésumé : (Auteur) Spatial information systems normally allow a two-dimensional modeling and presentation of a three-dimensional world. These strategies reduce three-dimensional objects to two-dimensional models, where the reduction is related to a significant loss of information. Loss of information may be accepted for a multitude of applications but it leads to undesirable restrictions on information systems that depend on an adequate presentation and analysis of a three-dimensional world. One of these applications are urban information systems, especially where the visualization of urban elements and the propagation of their functionality is described.
This thesis deals with the development of distributed urban 3D information systems on basis of open standards derived from Internet/Web technologies. It considers the application of standards for the implementation of client/server systems and user interfaces.
The main emphasis of the thesis is the presentation of three-dimensional objects in an information system. It covers the visualization of objects in a virtual 3D world and the development of suitable human computer interfaces that make it possible to access the objects and their functionality.
For the design and modeling process of objects, concrete guidelines that consider human perception of 3D objects are devised. Problems related to the user exploring a 3D scene are discussed, as the user interface for a 3D information system is designed.
Contemporary user interfaces offer a graphical 2D user interface (GUI). In a 2D GUI, objects are represented by two-dimensional models. Using three-dimensional representations new user requirements arise relating to the navigation and interaction in a virtual 3D world. Hence the user should be supported by the introduction of metaphors. Therefore the town metaphor, which is especially important for urban information systems, is introduced and is expanded into the idea of a campus metaphor.
The other main emphasis of the thesis is the practical application of the ideas described above. Consequently the 3D campus information system of the Karlsruhe University (CISKA) has been developed and implemented in the framework of this thesis. CISKA has been developed on the basis of common Internet/Web standards and offers a real-time exploration of the university campus in 3D. With the help of a standard Web-browser the user is able to move in a three-dimensional environment and to interact with the three-dimensional objects over the Internet. Through the implementation of additional navigation resources even inexperienced users are able to use the query, analysis and simulation functionality of the system.Numéro de notice : 59880 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/INFORMATIQUE Nature : Thèse étrangère Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=60655 Réservation
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Code-barres Cote Support Localisation Section Disponibilité 59880-01 37.30 Livre Centre de documentation Géomatique Disponible Gravito-Viskoelastodynamik für verallgemeinerte Rheologienmit Anwendungen auf den Jupitermond lo und die Erde / K. Wieczerkowski (1999)
Titre : Gravito-Viskoelastodynamik für verallgemeinerte Rheologienmit Anwendungen auf den Jupitermond lo und die Erde Titre original : [Dynamique gravito-élastique pour les rhéologies généralisées avec applications sur Io, la lune de Jupiter et sur la Terre] Type de document : Thèse/HDR Auteurs : K. Wieczerkowski, Auteur Editeur : Munich : Bayerische Akademie der Wissenschaften Année de publication : 1999 Collection : DGK - C Sous-collection : Dissertationen num. 515 Importance : 130 p. Format : 21 x 30 cm ISBN/ISSN/EAN : 978-3-7696-9553-3 Note générale : Bibliographie Langues : Allemand (ger) Descripteur : [Vedettes matières IGN] Géophysique interne
[Termes IGN] déformation de la croute terrestre
[Termes IGN] dynamique
[Termes IGN] Jupiter (planète)
[Termes IGN] rhéologie
[Termes IGN] Terre (planète)
[Termes IGN] viscositéRésumé : (Auteur) The work presented in this thesis is based on the viscoelastic field theory for spherical and self-gravitating planets, as described by Wolf (1997). Considering tidal and surface loading problems for chemically layered planets, we first formulate the field equations governing incompressible deformations in the isopotential-local form and derive their general solutions. We then give the field equations for compressible deformations (in the material-local form) and, following the procedure of Gilbert & Backus (1968), we derive their general solutions. All solutions incorporate the rheology in the form of a general relaxation function in order to study the influence of any given linear rheology on the tidal or loading problem. We parametrise the linear viscoelastic rheology using the Maxwell, Zelmer, Burgers and Caputo body.
As an application of the theory to a tidal problem, we consider simple planetary models and derive closedform solutions for the Love-Shida numbers, which describe the deformation and gravity perturbation of a planet under tidal forcing. We find that the global rate of tidal dissipation depends much more on the type of viscoelasticity than on the given density structure or the presence of a liquid core. Of the four rheologies studied here, the commonly used Maxwell body gives the lowest global dissipation rate. For a realistic choice of parameters the compressibility has only a small influence on the Love-Shida numbers. When using very small bulk and shear moduli, however, the system shows instabilities. As a numerical application we compute the tidal dissipation rate in the Jovian satellite lo for the rheologies listed above. In particular, we map for each rheology a parameter space of shear modulus and viscosity for which the global dissipation rate corresponds to lo's global heat flow. Furthermore, we calculate the volumetric tidal dissipation rate inside lo for the different types of viscoelasticity.
As an application of the theory to a surface loading problem we estimate the viscosity of the upper mantle beneath Fennoscandia, using post-glacially uplifted strand lines. The estimation method is based on McConnell (1968), who used strand lines of different age and height above present sea level to compute a regional relaxation time spectrum (IRTS). We adapt the estimation method for spherical Earth models and include formal propagation of data uncertainties. Following a recommendation by Wolf (1996) we compute a new IRTS for Fennoscandia based on an improved strand-line reconstruction by Donner (1995). Compared with the commonly used IRTS from McConnell (1968) we find that the improved IRTS has longer relaxation times for Legendre degrees 10-20 and 61-73. Considering the uncertainties of the improved IRTS, which are computed from the strand-line uncertainties, we find that the improved IRTS does not exclude the IRTS derived by McConnell. The inversion of the improved IRTS following the method of Mitrovica & Peltier (1993) yields a mean viscosity of (5 ± 1) X 1020 Pa s in the upper mantle (depth region 100-510 km). At greater depth (300-800 km) we find a value of (2 ± 1) X 1021 Pa s. When averaged over both depth ranges, the new viscosity estimate is in good agreement with the classical value of 1021 Pa s (Haskell, 1935).Numéro de notice : 53816 Affiliation des auteurs : non IGN Nature : Thèse étrangère Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=59537 Réservation
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Code-barres Cote Support Localisation Section Disponibilité 53816-02 47.10 Livre Centre de documentation En réserve M-103 Disponible 53816-01 47.10 Livre Centre de documentation En réserve M-103 Disponible Klassifikation und Interpolation mittels affin invarianter Voronoidiagramme auf der Basis eines Wahrscheinlich- keitsmaßes in großmaßstäbigen Geoinformationssystemen / R. Roschlaub (1999)PermalinkSegmentierung und Interpretation digitaler Bilder mit Markoff-Zufallsfeldern / J. Klonowski (1999)PermalinkSimultane Neuausgleichung des globalen 3D-Mars-Netzes / W. Zeitler (1999)PermalinkVerfeinerung und objektorientierte Implementierung eines Modells zur Nutzung von Lasermessungen zum Mond / B. Reichhoff (1999)PermalinkVon der 2oeD- zur 3D-Flächenmodellierung für die photogrammetrische Rekonstruktion im Objektraum / W. Kornus (1999)PermalinkZur Geokinematik im sächsischen Vogtland / J. Wendt (1999)PermalinkAnwendungen der satellitengestützten Radarinterferometrie zur Bestimmung von Topographie und Geschwindig-keitsfeldern / X. Wu (1998)PermalinkAusgleichung mit singulärer Varianzkovarianzmatrix am Beispiel der geometrischen Deformationsanalyse / G. Nkuite (1998)PermalinkAutomatische Objektextraktion aus digitalen Luftbildern / Helmut Mayer (1998)PermalinkBestimmung von Oberflächengeometrie, Punktbewegungen und Geoid in einer Region der Antarktis / W. Korth (1998)PermalinkDatenmodellierung für Gleisnetze und Schaffung eines einheitlichen Raumbezugssystems / F. Gielsdorf (1998)PermalinkEine neue Methode zur dreidimensionalen Radarabbildung von Oberflächen / M. Hohmann (1998)PermalinkEntwicklung und Erprobung eines Systems zur objektbezogenen tachymetrischen Datenerfassung mittels Telemetrie / A. Schluchter (1998)PermalinkExtraktion polymorpher Bildstrukturen und ihre topologische und geometrische Gruppierung / C. Fuchs (1998)PermalinkGeoidbestimmung mit geopotentiellen Koten / M. Feistritzer (1998)PermalinkGPS und GLONASS als Teil eines hybriden Meßsystems in der Geodäsie am Beispiel des Systems HIGGINS / A. Mathes (1998)PermalinkOn the Unification of Indonesian Local Height Systems / Khafid (1998)PermalinkOrtung von eindeutig identifizierbaren Zielen und kodierten Transpondern / D. Hounam (1998)PermalinkRasterbasierte Methoden zur Gebäudeextraktion aus gescannten Karten / R. Brugelmann (1998)PermalinkThe curvilinear datum transformation / Francis Ifeanyi Okeke (1998)Permalink