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The Pyramids of Gizeh Seen by TerraSAR-X – A Prime Example For Unexpected Scattering Mechanisms in SAR

Bamler, Richard and Eineder, Michael (2008) The Pyramids of Gizeh Seen by TerraSAR-X – A Prime Example For Unexpected Scattering Mechanisms in SAR. Geoscience and Remote Sensing Letters, IEEE, 5 (3), pp. 468-470. IEEE Geoscience and Remote Sensing Society. doi: 10.1109/LGRS.2008.919378. ISSN 1545-598X.

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Multiple scattering may render synthetic aperture radar (SAR) image interpretation difficult, particularly when it comes to imaging of man-made structures. In medium-resolution SAR images, contributions from different scattering mechanisms can only be distinguished for large objects and under favorable conditions, like bridges over calm water. Since the launches of TerraSAR-X and COSMO-SkyMed, high-resolution SAR imagery is readily available from every spot on the Earth, and multiple scattering image features will be increasingly found in many of these data. Some of the first TerraSAR-X images show the pyramids of Gizeh in a seemingly unexpected geometry. Instead of being geometrically distorted, the near-range faces of the pyramids look like ground projected. This letter explains this image puzzle by a mixture of two scattering effects. The theory is confirmed by an interferometric evaluation. The discussed image artifact can be seen as representative for many other multiple-scattering SAR imaging scenarios in high-resolution images. This letter also demonstrates once again that the interpretation of complex scattering configurations benefits from interferometric information.

Item URL in elib:https://elib.dlr.de/19687/
Document Type:Article
Title:The Pyramids of Gizeh Seen by TerraSAR-X – A Prime Example For Unexpected Scattering Mechanisms in SAR
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Date:July 2008
Journal or Publication Title:Geoscience and Remote Sensing Letters, IEEE
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.1109/LGRS.2008.919378
Page Range:pp. 468-470
EditorsEmailEditor's ORCID iD
Publisher:IEEE Geoscience and Remote Sensing Society
Keywords:Multiple scattering, SAR imaging geometry, SAR interferometry, synthetic aperture radar (SAR)
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:Space
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):W - no assignment (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > SAR Signal Processing
Deposited By: Eineder, Prof. Dr. Michael
Deposited On:02 Oct 2008
Last Modified:27 Apr 2009 04:42

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