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Konzeptionelle Untersuchung für ein ziviles Satellitennavigationssystem / K. Thiel (1996)
Titre : Konzeptionelle Untersuchung für ein ziviles Satellitennavigationssystem Titre original : [Étude de conception pour un système civil de navigation par satellites] Type de document : Thèse/HDR Auteurs : K. Thiel, Auteur Editeur : Munich : Bayerische Akademie der Wissenschaften Année de publication : 1996 Collection : DGK - C Sous-collection : Dissertationen num. 470 Importance : 96 p. Format : 21 x 30 cm ISBN/ISSN/EAN : 978-3-7696-9510-6 Note générale : Bibliographie Langues : Allemand (ger) Descripteur : [Vedettes matières IGN] Géodésie spatiale
[Termes IGN] correction du signal
[Termes IGN] Europe (géographie politique)
[Termes IGN] secteur spatial
[Termes IGN] secteur terrien
[Termes IGN] signal GNSS
[Termes IGN] système de positionnement par satellitesIndex. décimale : 30.61 Systèmes de Positionnement par Satellites du GNSS Résumé : (Auteur) The navigation systems GPS and GLONASS were designed as military systems and have now reached an operational status. The civil component at GPS had an own self-driving development showing a high number of applications, most of them were realised. Ingenious developments from the civil user community resulted in a large improvement in accuracy. This process is continuing but may not compensate for the deficiencies of the systems for civil use. A future satellite navigation system shall counteract for these deficits. With this motivation first contracts on a ,,GIobal Naviga-tion Satellite System", funded by administrations, are mainly driven by political goals. In order to overcome these shortages, systematic methods were developed and used in conceptual analysis. Main emphasis was given to the space segment and the signal structure.
The simulation of different configurations of the space segment, changing the number of satellites, orbit inclination and the spatial arrangement, showed best results for availability and accuracy using a combination of 6 geostationary satel-lites, equally distributed along the equator plus 24 geosynchronous satellites with about 55° inclination. Increasing the number of satellites to 30, a small improvement in accuracy but a clear upgrading in integrity can be achieved. The geostationary satellites also provide additional services to the users.
Extending the code frequency to 10 MHz and correspondingly enlarging the code length improves the range resolution of the code signal. Also the multipath effect will be reduced by a large amount. Expanding the carrier frequency in the area of the X-Band shows an improvement for high accurate carrier phase measurements and also for TEC estimation, in order to compensate for ionospheric delay.
Using a two-way measurement system for orbit determination and time synchronisation of the onboard clock will further improve overall system accuracy. Applying the found system parameters in the design of a future civil GNSS an accuracy of the ,,User Equivalent Ranging Error" with 2.4m for the normal and 1.6m for the differential measurement can be realised. With a mean PDOP value of 1.8 the position accuracy will always be better than 5.Numéro de notice : 28024 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Thèse étrangère Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=63371 Réservation
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Code-barres Cote Support Localisation Section Disponibilité 28024-01 30.61 Livre Centre de documentation Géodésie Disponible 28024-02 30.61 Livre Centre de documentation Géodésie Disponible Recent crustal deformation and strain accumulation in the Marmara sea region, NW Anatolia, inferred from GPS measurements / Christian Straub (1996)
Titre : Recent crustal deformation and strain accumulation in the Marmara sea region, NW Anatolia, inferred from GPS measurements Type de document : Thèse/HDR Auteurs : Christian Straub, Auteur Editeur : Zurich : Institut für Geodäsie und Photogrammetrie IGP - ETH Année de publication : 1996 Collection : IGP Mitteilungen, ISSN 0252-9335 num. 058 Importance : 150 p. Format : 21 x 30 cm ISBN/ISSN/EAN : 978-3-906513-82-9 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de géodésie spatiale
[Termes IGN] analyse comparative
[Termes IGN] campagne GPS
[Termes IGN] déformation de la croute terrestre
[Termes IGN] données GPS
[Termes IGN] Marmara, mer de
[Termes IGN] positionnement par GPS
[Termes IGN] risque naturel
[Termes IGN] séismeIndex. décimale : 30.82 Applications géophysiques de géodésie spatiale Résumé : (auteur) This work analyzes recent crustal deformation in the Marmara Sea region, NW Anatolia, based on data derived from repeated GPS measurements. It is the geodetic part of the MARMARA poly-project of the Swiss Federal Institute of Technology (ETHZ). The overall goal of the Marmara poly-project is to examine the active tectonics and their interaction with groundwater circulation, heat flow and seismicity in northwestern Anatolia. In 1990, the Geodesy and Geodynamics Lab. (GGL) of the ETHZ established 52 GPS sites at the western end of the single strand North Anatolian Fault Zone (NAFZ) and its splaying into a complex fault system. This complexity is caused by the transition from the east-west oriented motion of the Anatolian block to the extensional regime of the Aegean Sea directing north-south. The GPS sites were occupied during three major GPS campaigns in 1990, 1992, and 1994. The GPS data were analyzed using the Bernese GPS Software. As a result of the combination of these campaigns a detailed velocity field of the transition zone between the westward motion of Anatolia and the extending Aegean Sea was obtained. The average rate of motion of Anatolia relative to Eurasia is 20 mm/a in a W direction. West of longitude 27.5°, the average direction of motion turns from W to WSW. From north to south, a gradual rate increase from 0 to 20 mm/a was found. Comparisons with deformation rates derived from the summation of seismic moment tensors suggest that less than 60% of the GPS inferred rates are released by earthquakes. The deformation rates are evaluated by means of strain and stress analysis, by using the method of collocation, examination of residuals relative to rigid Eulerian rotations, as well as a Finite Element model of the Marmara Sea region. Most deformation occurs along the northern strand of the NAFZ that runs from Mudurnu through the Gulf of izmit, passing the Marmara Sea, re-enters the Eurasian mainland and continuing to the Gulf of Saros. The Yalova peninsula endures considerable deformation as well. No significant deformation was found on the Biga peninsula. Thus, the western part of the middle strand that crosses the Biga peninsula is either inactive or locked. The Gulf of Edremit and the areas south of it are occupied by extensional processes in NNE-SSW direction (max. extension: 0.3 ppm/a [= u.strain/a]). The average shear-strain rate in the Marmara Sea region is 0.1 ppm/a (maximum shear: 0.3 ppm/a). The highest annual accumulation of density of strain energy (4 mJ/m3) and maximum shear stress (16 kN/m2) is located along the northern strand. The projection of the strain on the main fault allows us to determine the kind and amount of faulting that can be expected at individual fault lines. The dextral strike along the northern strand reaches 0.1-0.3 ppm/a. The results obtained from repeated GPS measurements compare well with the pattern of horizontal direction of major extension derived from seismotectonic and neotectonic data. In the East, the major horizontal extension directs NE-SW. Further to the west it gradually changes to almost N-S. Comparisons with rigid pole rotations for the Eastern Mediterranean, postulated by other authors, show that the Marmara region cannot be regarded as part of a rigid Anatolian block. The analysis of residuals to a rigid pole rotation of the Anatolian sites of the MARMARA GPS network (33.9°N, 29.8°E, CD=1.36°/Ma) depicts the location and size of the area of the main deformation. Cross-sectors radial to the best fitting pole reveal a detailed pattern of increase of deformation rates over the different fault lines. The deformation zones in the eastern and western part is narrow (=45 km). The zone for the middle sector undergoes a more distributed deformation (up to 100 km). The investigation of the radial residuals illustrates the overall extension of the Marmara region directing NE-SW. Finite Element calculations (2D, elasto-static) confirm the findings of the strain and stress analysis. Furthermore, they suggest that the known neotectonic fault geometry is capable of absorbing a considerable accumulation of distortion. However, the Finite Element model also gives indications for additional fault structures at the western end of the Marmara Sea and in Thrace, north and south of the northern strand striking subparallel to it. Finally, the strain field of the Eastern Mediterranean region is derived from GPS measurements spanning the whole region. The deformation pattern confirm the strong dextral motion along the NAFZ (0.2 ppm/a) as well as the extensional regimes of Western Anatolia and the Aegean Sea. Residuals from a rotation for the Eastern Mediterranean reveal that the Anatolian/Aegean region does not behave like a single rigid plate. The rates along the NAFZ show that there is a zone with a width of up to 100 km that endures strong internal deformation. The southern Aegean, Western, and Southwestern Greece do not fit to a simple rigid polar rotation at all. Numéro de notice : 68913 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Thèse étrangère DOI : 10.3929/ethz-a-001624667 En ligne : http://dx.doi.org/10.3929/ethz-a-001624667 Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=64059 Réservation
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Code-barres Cote Support Localisation Section Disponibilité 68913-01 30.82 Livre Centre de documentation Géodésie Disponible
Titre : Satellite geodesy and geodynamics : current deformation along the West Hellenic arc Type de document : Thèse/HDR Auteurs : Max Vinzenz Muller, Auteur Editeur : Zurich : Institut für Geodäsie und Photogrammetrie IGP - ETH Année de publication : 1996 Collection : IGP Mitteilungen, ISSN 0252-9335 num. 057 Importance : 126 p. Format : 21 x 30 cm ISBN/ISSN/EAN : 978-3-906513-80-5 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de géodésie spatiale
[Termes IGN] déformation de la croute terrestre
[Termes IGN] données GPS
[Termes IGN] géophysique interne
[Termes IGN] Grèce
[Termes IGN] Méditerranée, mer
[Termes IGN] modèle géologique
[Termes IGN] positionnement par GPS
[Termes IGN] risque naturel
[Termes IGN] séismeIndex. décimale : 30.82 Applications géophysiques de géodésie spatiale Résumé : (Auteur) The geodynamic processes in the Mediterranean area are reflected in the recent crustal movements determined by satellite geodesy. There is a counterclockwise rotation of Africa relative to Eurasia, with complex deformation in between. A key feature to a better understanding of the driving forces and associated seismic activity in the Africa/Eurasia collision zone is the Hellenic Arc. This thesis reports on repeated GPS measurements, that began in 1989, along the western coast of Greece (including some stations in southern Italy). The results are presented in terms of relative displacements and strain rates. They reveal distinct crustal motion of the central Ionian Islands and SW Greece: Over a time span of five years various parts of Greece have moved to the SW at a rate of -40 mm/a relative to SE Italy and Epiros. The trajectories constructed from the repeated observations show that the boundary zone, against the sites of no significant motion relative to South Italy, coincides with the Kephalonia fault zone (KFZ) where a maximum of strain energy density was also found. The maximum strain rate is 0.18 µstrain/a, located in the vicinity of Lefkada. where anomalously high earthquake activity is observed. This intense deformation accounts for the earthquakes that have frequently devastated the Central Ionian Islands. The deformation field of the KFZ is interpreted as a transition zone between the kinematics of the Eurasian and the Aegean/Anatolian plates (Hellenic fold and thrust belts). Seismic risk assessment is one important application of geodetically-determined strain rates. This thesis also includes an approach for approximating the observed displacement field by the use of a tectonic model for the area of investigation. Numéro de notice : 56231 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Thèse étrangère DOI : 10.3929/ethz-a-001584904 En ligne : http://dx.doi.org/10.3929/ethz-a-001584904 Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=59994 Réservation
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Code-barres Cote Support Localisation Section Disponibilité 56231-01 30.82 Livre Centre de documentation Géodésie Disponible 56231-02 30.82 Livre Centre de documentation Géodésie Disponible The Geodetic Antarctic Project GAP95. German contributions to the SCAR 95 Epoch campaign / R. Dietrich (1996)
Titre : The Geodetic Antarctic Project GAP95. German contributions to the SCAR 95 Epoch campaign Type de document : Monographie Auteurs : R. Dietrich, Éditeur scientifique Editeur : Munich : Bayerische Akademie der Wissenschaften Année de publication : 1996 Collection : DGK - B Sous-collection : Angewandte Geodäsie num. 304 Importance : 146 p. Format : 21 x 30 cm ISBN/ISSN/EAN : 3-7696-8586-6 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de géodésie spatiale
[Termes IGN] Antarctique
[Termes IGN] Bernese
[Termes IGN] campagne GPS
[Termes IGN] données GPS
[Termes IGN] GIPSY-OASIS
[Termes IGN] interférométrie à très grande base
[Termes IGN] ligne de base
[Termes IGN] marégraphe
[Termes IGN] recherche scientifique
[Termes IGN] système de référence géodésique
[Termes IGN] tectoniqueIndex. décimale : 30.80 Applications diverses de géodésie spatiale Numéro de notice : 11011 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Recueil / ouvrage collectif Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=39893 Réservation
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Code-barres Cote Support Localisation Section Disponibilité 11011-01 30.80 Livre Centre de documentation Géodésie Disponible 11011-02 30.80 Livre Centre de documentation Géodésie Disponible The Global Positioning System and GIS / M. Kennedy (1996)
Titre : The Global Positioning System and GIS : an introduction Type de document : Monographie Auteurs : M. Kennedy, Auteur Editeur : Chelsea, Michigan : Ann Arbor Press Année de publication : 1996 Importance : 268 p. Format : 15 x 24 cm + cederom ISBN/ISSN/EAN : 978-1-57504-017-2 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie spatiale
[Termes IGN] ArcInfo
[Termes IGN] ArcView
[Termes IGN] correction différentielle
[Termes IGN] données GPS
[Termes IGN] Global Positioning System
[Termes IGN] système d'information géographiqueIndex. décimale : 30.60 Géodésie spatiale Note de contenu : Introduction
Part 1 -- Basic Concepts
Where Are You?
GPS and GIS
Anatomy of the Term: "Global Positioning System"
PROJECT 1A
- Getting Acquainted with a GPS Receiver
- Power On and Off
- The Sources of Power and Other Gadgets
- Understanding the Screens and Controls
- Setting Vital Parameters
- Preparing to Correlate GPS Data with Map Data
- Double checking the configuration
- Final Inside Activity
PROJECT 1B
- Now Outside
- Tracking Satellites
- Set Your Watch
- Did the Earth Move?
PROJECT 1C
- Back Inside
- Two Altitude Referencing Systems
- The Datum Makes a Difference
Latitude Computation on "OLD" Position
Longitude Computation on "OLD" Position
GPS Equipment Check-out Form
Part 2 -- Automated Data Collection
How'd They Do That?
How it works: measuring distance by measuring time
Factors Affecting When and How to Collect Data
Position Accuracy and DOP
So, Actually, What is DOP?
PROJECT 2A
- Inside: Planning the GPS Data Collection Session
- Setting up the Receiver/Datalogger
- In the Field: Collecting Data
PROJECT 2B
- Taking Data on Foot
- Collecting Data by Bicycle
- Collecting Data by Automobile
- Actual Data Collection
- Back Inside
Data Collection Parameter Form -- GPS2GIS
Part 3 -- Examining GPS Data
Some Questions Answered
Question #1 through Question #9
PROJECT 3A
PROJECT 3B
PROJECT 3C
- Calculate the Average Position
Exercises
Part 4 -- Differential Correction
GPS Accuracy in General
Differential Correction in Summary
Thinking About Error
First Line of Defense Against Error: Averaging
Sources of GPS Error
Clock Errors
Ephemeris Errors
Receiver Errors
Atmospheric Errors
Selective Availability (SA)
Reducing Errors -- Dramatically
More Formally
Making Differential Correction Work
Proof of the Pudding
PROJECT 4A
PROJECT 4B
PROJECT 4C
PROJECT 4D
Exercises
Community Base Station Information
Part 5 -- Integrating GPS Data with ARC/INFO
To Review:
Prescription for Failure: Incorrect Parameters
The Conversion Process
The Files that Generate Coverages
Bringing GPS Data to GIS: Major Steps
PROJECT 5A
PROJECT 5B
PROJECT 5C
PROJECT 5D
Exercise
Part 6 -- ArcView, ArcData, and GPS
Introduction to ArcView
Integration of GIS Activities
The Components of ArcView
Operations on Themes and Views
The ArcUSA Database
PROJECT 6
- Seeing GPS Data with ArcView
- Starting ArcView
- Getting Help
- Starting a New Project...and Saving It
- Opening a Project
- Initiating a View
- Views and Coverages: Adding a GPS-based Theme
- Editing the Legend
- Projecting Coordinates
- Adding a Theme from ArcUSA
- Identifying Particular Features of a Particular Theme
- Magnifying and Moving the View
- Selecting Features
- Adding Water
- Bringing Up a Feature Attribute Table
- More Complex Selecting
- Other Cool Table Operations
Exercises
Part 7 -- The Present and the Future
Obtaining GIS Attribute Data with GPS Equipment
The Organization of Attribute Data
The Data Dictionary
From the Environment, through GPS, to GIS
Navigation with GPS Equipment
Real-Time, Differential GPS Position Finding
Getting Corrections for GPS Measurements: Right Now!
A User-Operated Real-Time Base Station
A Centrally Located Real-time Base Station
A "Differential Corrections Anywhere" System
Planning the GPS Data Collection Session
Almanacs
Mission Planning Software
On the Horizon: Trends
Better Accuracy
Faster Fixes
GPS Combined with Other Systems
Monuments Will be Different, and in Different Places
Air Navigation Will Be Radically Transformed
Marine and Vehicle Navigation Will Be Improved
System Integrity and Reliability -- Great
Improvements
Other Countries, Other Systems
Civilian and Military Interests Will Cooperate
GPS Will Become the Primary Way to
Disseminate Time Information
GPS: Information Provider or Controller?
Applications: New and Continuing
GPS and GIS
Nature of the Projects
Projects Utilizing Feature Attribute Data
PROJECT 7A
- Obtaining GIS Attribute Information with GPS Equipment
PROJECT 7B
PROJECT 7C
- Creating and Viewing Coverages
- Executing SML Files
- Now Use Your Data
PROJECT 7D
- Navigating with GPS Equipment
- More Walking
PROJECT 7E
- Real-Time, Differential GPS Position Finding
PROJECT 7F
- Planning the GPS Data Collection Session
PROJECT 7G
- Mission Planning Using Quick PlanNuméro de notice : 68301 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Monographie Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=61926 Réservation
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Code-barres Cote Support Localisation Section Disponibilité 68301-01 30.60 Livre Centre de documentation Géodésie Disponible The reprocessing of the code IGS data of 1995 (the RIGS data campaign) / Serge Botton (1996)PermalinkUnderstanding GPS / Elliott D. Kaplan (1996)PermalinkZur Bahndynamik niedrigfliegender Satelliten / M. Scheinert (1996)PermalinkGeodetic measurements of convergence across the New Hebrides Subduction Zone / Stéphane Calmant in Geophysical research letters, vol 22 n° 19 (octobre 1995)PermalinkAmbiguity resolution techniques in geodetic and geodynamic applications of the Global Positioning System / L. Mervart (1995)PermalinkAnalyse der GPS-Alpentraverse / M. Vogel (1995)PermalinkAnalysis of GPS data processing techniques / Dorota A. Grejner-Brzezinska (1995)PermalinkErweiterte Modellbildung zur Netzausgleichung für die Deformationsanalyse, dargestellt am Beispiel der Geo- traverse Venezolanische Anden / H. Saler (1995)PermalinkPermalinkGPS measurements at the Nuottavaara post glacial fault / Markku Poutanen (1995)PermalinkPermalinkPrésentation du système GPS / Serge Botton (1995)PermalinkA recursive procedure for computation and quality control of GPS differential corrections / X. Jin (1995)PermalinkSatellitengeodätische Positionierung in der relativistischen Raum-Zeit / V. Schwarze (1995)PermalinkTaylor expansion of GPS observations equations / X. Jin (1995)PermalinkTraitement des observations de géodésie sur satellites / Henri Duquenne (1995)PermalinkTraitements des observations de géodésie sur satellites (mars 1994, rév. octobre 1995) / Henri Duquenne (1995)PermalinkAtmospheric pressure loading effects on global positioning system coordinate determinations / Tonie M. VanDam in Journal of geophysical research : Solid Earth, vol 99 n° 12 (10/12/1994)PermalinkPractical experience with GPS supported aerial triangulation : paper read at the one-day symposium of the society, entitled GPS and photogrammetry on 1st November 1993 / F. Ackermann in Photogrammetric record, vol 14 n° 84 (October 1994 - March 1995)PermalinkFirst assessment of GPS-Based reduced dynamic orbit determination on Topex-Poseidon / T.P. Yunck in Geophysical research letters, vol 21 n° 7 ([01/04/1994])PermalinkA first Topex-Poseidon terrestrial reference frame including SLR-DORIS-GPS tracking and tide gauges / Claude Boucher (1994)PermalinkPermalinkQualité des opérations GPS / Jean-Pierre Sparfel (01/01/1994)PermalinkEarly results from the Topex-Poseidon GPS precise orbit determination demonstration / Willy I. Bertiger (01/03/1993)PermalinkContribution of IGS 92 to the Terrestrial Reference Frame / Claude Boucher (1993)PermalinkDynamic GPS height determination in the decimeter level for bathymetric applications / Robert Lemmens (1993)PermalinkGPS-Verfahren für den Nahbereich mit kurzen Beobachtungszeiten in Vermessung und Ortung / K. Sauermann (1993)PermalinkInter-comparaisons GPS et Doris dans le cadre de la mission océanographique Topex-Poseidon : résultats préliminaires / Pascal Willis (1993)PermalinkModeling the ionosphere for an active control network of GPS stations / Y. Georgiadiou (1993)PermalinkNFP 20, Beitrag der Geodäsie zur geologischen Tiefenstruktur und Alpendynamik / Hans-Gert Kahle (1993)PermalinkPermanent satellite tracking networks for geodesy and geodynamics / G.L. Mader (1993)PermalinkProceedings of the IGS Analysis Center Workshop / Jan Kouba (1993)PermalinkLes réseaux géodésiques, systèmes de références et GPS / Michel Le Pape (01/01/1993)PermalinkThe lambda method for integer ambiguity estimation / P.J. de Jonge (1993)PermalinkThe IERS Terrestrial Reference Frame and its extensions by IGS and DORIS / Claude Boucher (13/10/1992)PermalinkGPS Projekt Marmara / Christian Straub (1992)PermalinkProceedings of the symposium refraction of transatmospheric signals in geodesy / J.C. de Munck (1992)PermalinkProcessing of the 1991 GPS campaigns in central Finland for crustal deformation studies / R. Chen (1992)PermalinkTraitement de données GPS de la campagne GIG '91' en mode géodésique ultra précis / Guy Wöppelmann (1992)PermalinkLes données dans les systèmes d'information géographique / Paul Rouet (1991)PermalinkGIS/LIS 1991, Volume 2. ACSM-ASPRS Fall convention technical papers / American society for photogrammetry and remote sensing (1991)PermalinkInitial steps towards integrating Doris and GPS data: preparation for Topex-Poseidon / Alfred Piuzzi (1991)PermalinkMise en place d'un centre de données GPS / Loïc Daniel (1991)PermalinkNicht-gravitative Störeinflüsse bei der Modellierung von GPS-Erdumlaufbahnen / J. Feltens (1991)PermalinkPermalink