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radarSynonyme(s)radio Detection and Ranging |
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Development of models for monitoring the urban environment using radar remote sensing / Catherine Ticehurst (1998)
Titre : Development of models for monitoring the urban environment using radar remote sensing Type de document : Monographie Auteurs : Catherine Ticehurst, Auteur Editeur : Kensington [Australie] : University of New South Wales Année de publication : 1998 Collection : Reports from School of Geomatic Engineering num. S-54 Importance : 250 p. Format : 21 x 30 cm ISBN/ISSN/EAN : 978-0-7334-1679-8 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes IGN] densité de population
[Termes IGN] direction de visée
[Termes IGN] image aérienne
[Termes IGN] image AIRSAR
[Termes IGN] image radar
[Termes IGN] milieu urbain
[Termes IGN] occupation du sol
[Termes IGN] polarisation
[Termes IGN] population urbaine
[Termes IGN] radar à antenne synthétique
[Termes IGN] rétrodiffusion
[Termes IGN] simulation
[Termes IGN] surveillance de l'urbanisation
[Termes IGN] télédétection en hyperfréquenceRésumé : (Auteur) The world's population is rapidly increasing, especially in urban regions to which many rural inhabitants are migrating. Such an effect results in the need for a more efficient method of monitoring cities, both in developing and developed countries. Present monitoring techniques are inefficient, and unable to effectively maintain up-to date information due to the population increase. Hence, the demand for settlement detection, urban classification and population estimation is apparent.
Radar remote sensing is showing great potential for assisting in such a matter. Its ability to discriminate between small buildings of sparse layout, and large, densely spaced, buildings is slowly being realised. This research addresses this issue through the development of a primarily theoretical model.
The urban environment is a complex mixture of built as well as natural elements. In order to simplify such a difficult situation, the backscatter expected from urban areas can be divided into simple scattering mechanisms. The most important ones chosen for this research are double bounce (from building walls and tree trunks), single bounce (from building roofs), and volume scattering (from tree canopies). The model has been designed to consider these scattering mechanisms, and their expected proportions, occurring in the urban environment.
One of the greatest difficulties created through using radar in the built environment, is due to the 'Cardinal Effect'. This occurs when there is strong double bounce scattering due to the intersection of the orthogonal building wall and ground surface being perpendicular to the look direction. An empirical investigation is conducted in the thesis to further understand this phenomenon.
In order to develop the model, many parameters, including those relating to the cardinal effect, need to be considered. Determination of such parameters is not a simple task, and requires some general assumptions to be made. The model has been designed to determine the backscatter and polarisation information for two different urban classes (ie., residential and commercial). These classes are chosen because they generally represent the low and high density urban areas respectively.
The backscatter and polarisation information from a single building is developed and then expanded into a block of buildings, with consideration of radar shadowing effects. Trees are also included in the simulated residential areas.
In order to test the accuracy of the model for residential and commercial land use, test sites representing a large range of orientation and look angles, are chosen in the city of Sydney, Australia. AirSAR data for these test sites are compared to model simulations representing the same characteristics. The results show that L-band model output is quite comparable with the real data. The P-and C-band are less reliable, with the model C-band results showing little resemblance to the AirSAR information.
For the model to be further tested, a simple classification is performed over a large area of the Eastern suburbs of Sydney. L-band data is used due to the model simulations closely represerding real data. Furthermore, the real P-, L- and C-band polarisation information were found to be quite similar, so a multiwavelength classification using radar data was not seen to contribute significant information compared to a single band.
The classification is based on a comparison between the model and AirSAR total power, polarisation index and polarisation phase difference. The classification shows that the model has the ability to distinguish between low and high density urbw areas. However, due to the difficulties in defining the characteristics of residential and commercial land uses, there is some overlap in the classification. Some tall, dense residential areas are classified as commercial. Similarly small scale commercial areas are classified to be residential. Such a problem is related to the definition of land use rather than land cover.
The most important classification parameter observed through this exercise is the total power. The polarisation index proved of little use due to its incapability of distinguishing between residential and commercial classes for the real data. Classification using the total power and polarisation phase difference together gave a less accurate result than total power alone.
However, overall results show that the potential which radar has as a remote sensing tool for distinguishing between low and high density urban areas, and for classification (under the appropriate circumstances), is quite high. This is especially so when radar is combined with other information gathering systems, such as optical remotely sensed data. Such a combination could be very beneficial for the growing need for urban monitoring and population estimation.Numéro de notice : 67410 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Monographie Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=61751 Réservation
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Code-barres Cote Support Localisation Section Disponibilité 67410-01 35.46 Livre Centre de documentation Télédétection Disponible Developping international connections, RSS98, Proceedings of the 24th annual conference and exhibition of the Remote Sensing Society, Greenwich, 9-11 September 1998 / C. Power (1998)
Titre : Developping international connections, RSS98, Proceedings of the 24th annual conference and exhibition of the Remote Sensing Society, Greenwich, 9-11 September 1998 Type de document : Actes de congrès Auteurs : C. Power, Auteur ; I. Downey, Auteur ; Remote sensing society, Auteur Editeur : Nottingham [Royaume-Uni] : Remote Sensing Society RSS Année de publication : 1998 Conférence : RSS 1998, 24th annual conference and exhibition of the Remote Sensing Society, Developping international connections 09/11/1998 11/09/1998 Greenwich Royaume-Uni Importance : 756 p. Format : 15 x 21 cm ISBN/ISSN/EAN : 978-0-946226-18-4 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Télédétection
[Termes IGN] capteur (télédétection)
[Termes IGN] environnement
[Termes IGN] géologie
[Termes IGN] limite de résolution géométrique
[Termes IGN] radar
[Termes IGN] système d'information géographique
[Termes IGN] télédétection spatiale
[Termes IGN] traitement d'imageNuméro de notice : 47734 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Actes Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=35372 Réservation
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Code-barres Cote Support Localisation Section Disponibilité 47734-01 CG.98 Livre Centre de documentation Congrès Disponible Eine neue Methode zur dreidimensionalen Radarabbildung von Oberflächen / M. Hohmann (1998)
Titre : Eine neue Methode zur dreidimensionalen Radarabbildung von Oberflächen Titre original : [Une nouvelle méthode pour l'image radar tridimensionnelle des surfaces] Type de document : Thèse/HDR Auteurs : M. Hohmann, Auteur Editeur : Munich : Bayerische Akademie der Wissenschaften Année de publication : 1998 Collection : DGK - C Sous-collection : Dissertationen num. 503 Importance : 114 p. Format : 21 x 30 cm ISBN/ISSN/EAN : 978-3-7696-9542-7 Note générale : Bibliographie Langues : Allemand (ger) Descripteur : [Vedettes matières IGN] Traitement d'image radar et applications
[Termes IGN] géométrie de l'image
[Termes IGN] image 3D
[Termes IGN] image radar
[Termes IGN] radar à antenne synthétiqueIndex. décimale : 35.22 Télédétection en hyperfréquence - Traitement d'image radar Numéro de notice : 67056 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Thèse étrangère Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=61698 Réservation
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Code-barres Cote Support Localisation Section Disponibilité 67056-01 35.22 Livre Centre de documentation Télédétection Disponible 67056-02 35.22 Livre Centre de documentation Télédétection Disponible Images of the Earth / Stephen A. Drury (1998)
Titre : Images of the Earth : a guide to remote sensing Type de document : Monographie Auteurs : Stephen A. Drury, Auteur Mention d'édition : 2 Editeur : Oxford : Oxford Science Publications Année de publication : 1998 Importance : 203 p. Format : 22 x 27 cm ISBN/ISSN/EAN : 978-0-19-854997-0 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Télédétection
[Termes IGN] acquisition de données
[Termes IGN] analyse de données
[Termes IGN] image Landsat
[Termes IGN] image satellite
[Termes IGN] image SPOT
[Termes IGN] photo-interprétation
[Termes IGN] photographie aérienne
[Termes IGN] prospective
[Termes IGN] radar
[Termes IGN] satellite artificiel
[Termes IGN] télédétection en hyperfréquenceIndex. décimale : 35.00 Télédétection - généralités Numéro de notice : 50959 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Monographie Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=59153 Réservation
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Code-barres Cote Support Localisation Section Disponibilité 50959-01 35.00 Livre Centre de documentation Télédétection Disponible ISPRS Commission 7 Symposium Resource and environmental monitoring 1996-2000 / Gabor Remetey-Fulopp (1998)
Titre : ISPRS Commission 7 Symposium Resource and environmental monitoring 1996-2000 Type de document : Actes de congrès Auteurs : Gabor Remetey-Fulopp, Éditeur scientifique Editeur : International Society for Photogrammetry and Remote Sensing ISPRS Année de publication : 1998 Collection : International Archives of Photogrammetry and Remote Sensing, ISSN 0252-8231 num. 32-7 Conférence : ISPRS 1998, Commission 7 symposium on Resource and environmental monitoring 01/09/1998 04/09/1998 Budapest Hongrie OA Proceedings archives Importance : 818 p. Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes IGN] environnement
[Termes IGN] image satellite
[Termes IGN] radar
[Termes IGN] système d'information géographique
[Termes IGN] télédétection spatialeNuméro de notice : 67998 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Actes DOI : sans En ligne : https://goobi.tib.eu/viewer/image/1669065049/1 Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=37186 Contient
- Remote sensing applications for change detection in the coastal region of the Nile delta, Egypt / S.I. Abdel Rahman (01/09/1998)
- The contribution of remote sensing and geographic information systems in the prediction of water rising and flooding field / Mohamed Chikh (01/09/1998)
- Integration of various types of remote sensing data for the Morava river catchment evaluation / Lena Halounova (01/09/1998)
- Monitoring of land use and crop growth conditions in Europe / G.J.A. Nieuwenhuis (01/09/1998)
- Forest fire monitoring and damage assessment in Mediterranean landscapes through the integration of remote sensing and GIS techniques / Jesus San Miguel-Ayanz (1998)
- Estimating erosion rates of tropical shorelines from Radarsat-1 / Vern Singhroy (01/09/1998)
Techniques & technologies des véhicules spatiaux, 2. Volume 2, Charges utiles / Centre national d'études spatiales (1998)PermalinkCartographie radar / Laurent Polidori (1997)PermalinkImage processing, signal processing, and synthetic aperture radar for remote sensing / Jacky Desachy (1997)PermalinkAdvanced Synthetic Aperture Radar (ASAR) for polar platform / Matra (ca : 1996)PermalinkAnnales de stage, année universitaire 1995-1996 / Aurélie Bouillon (1996)PermalinkIntroduction to remote sensing / J.B. Campbell (1996)PermalinkProgress in environmental remote sensing research and applications / E. Parlow (1996)PermalinkRSS96 Remote Sensing Science & Industry / N.M. Donoghue (1996)PermalinkSurface-penetrating radar / D.J. Daniels (1996)PermalinkApport de la simulation d'images à la validation des techniques de cartographie radar / Laurent Polidori in Bulletin [Société Française de Photogrammétrie et Télédétection], n° 138 (Avril 1995)Permalink