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Ray-Tracing Simulation Techniques For Understanding High-Resolution SAR Images

Auer, Stefan and Hinz, Stefan and Bamler, Richard (2010) Ray-Tracing Simulation Techniques For Understanding High-Resolution SAR Images. IEEE Transactions on Geoscience and Remote Sensing, 48, pp. 1445-1456. IEEE. ISSN 0196-2892.

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In this paper, a simulation concept is presented for creating synthetic aperture radar (SAR) reflectivity maps based on ray tracing. Three-dimensional models of man-made objects are illuminated by a virtual SAR sensor whose signal is approximated by rays sent through the model space. To this end, open-source software tools are adapted and extended to derive output data in SAR geometry followed by creating the reflectivity map. Rays can be followed for multiple reflections within the object scene. Signals having different multiple reflection levels are stored in separate image layers. For evaluating the potentials and limits of the simulation approach, simulated reflectivity maps and distribution maps are compared with real TerraSAR-X images for various complex man-made objects like a skyscraper in Tokyo, the Wynn Hotel in Las Vegas, and the Eiffel Tower in Paris. The results show that the simulation can provide very valuable information to interpret complex SAR images or to predict the reflectivity of planned SAR image acquisitions.

Document Type:Article
Title:Ray-Tracing Simulation Techniques For Understanding High-Resolution SAR Images
AuthorsInstitution or Email of Authors
Auer, StefanTUM
Hinz, StefanUni Karlsruhe
Bamler, RichardUNSPECIFIED
Journal or Publication Title:IEEE Transactions on Geoscience and Remote Sensing
Refereed publication:Yes
In Open Access:No
In ISI Web of Science:Yes
Page Range:pp. 1445-1456
Keywords:SAR, ray-tracing,
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W - no assignment
DLR - Research area:Space
DLR - Program:W - no assignment
DLR - Research theme (Project):W - no assignment (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute
Deposited By: Cornelia Roehl
Deposited On:10 Nov 2010 15:06
Last Modified:13 Jan 2015 09:36

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