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Spaceborne Spotlight SAR Interferometry With TerraSAR-X

Eineder, Michael and Adam, Nico and Bamler, Richard and Yague-Martinez, Nestor and Breit, Helko (2009) Spaceborne Spotlight SAR Interferometry With TerraSAR-X. IEEE Transactions on Geoscience and Remote Sensing, Vol. 47 (Issue 5), pp. 1524-1535. IEEE Geoscience and Remote Sensing Society. ISSN 0196-2892.

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Abstract

Abstract—Recently, synthetic aperture radar (SAR) data with 1-m resolution acquired by satellites in spotlight mode became available to the public. In this paper, we elucidate the differences between interferometric processing of strip map and of spotlight SAR data, and we outline adequate algorithms for key processing steps such as azimuth Doppler filtering. We further present first TerraSAR-X spotlight interferograms, together with an evaluation of the paraeters that are critical for interferometry. Our results indicate a very good geometric accuracy, stability, and phase fidelity of the TerraSAR-X sensor and its products. From the interferograms, we are able to determine the heights of larger buildings and millimeter-scale structural deformation in several examples. The high detail level of imaged buildings and the good temporal phase coherence of urban areas in X-band make spotlight interferometry an exciting processing technique that enables new applications such as surveying individual buildings.

Document Type:Article
Title:Spaceborne Spotlight SAR Interferometry With TerraSAR-X
Authors:
AuthorsInstitution or Email of Authors
Eineder, MichaelMichael.Eineder@dlr.de
Adam, NicoNico.Adam@dlr.de
Bamler, RichardRichard.Bamler@dlr.de
Yague-Martinez, NestorNestor.Yague@dlr.de
Breit, HelkoHelko.Breit@dlr.de
Date:May 2009
Journal or Publication Title:IEEE Transactions on Geoscience and Remote Sensing
Refereed publication:Yes
In Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:Vol. 47
Page Range:pp. 1524-1535
Publisher: IEEE Geoscience and Remote Sensing Society
ISSN:0196-2892
Status:Published
Keywords:InSAR, spotlight SAR, synthetic aperture radar (SAR), TerraSAR-X
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 - Projekt TerraSAR-X Nutzlastbodensegment (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > SAR Signal Processing
Deposited By: Dr.rer.nat. Michael Eineder
Deposited On:07 Jul 2009 10:36
Last Modified:26 Mar 2013 13:10

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