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TOPS Interferometry with TerraSAR-X

Prats, Pau and Marotti, Luca and Wollstadt, Steffen and Scheiber, Rolf (2010) TOPS Interferometry with TerraSAR-X. In: Proceedings of the European Conference on Synthetic Aperture Radar (EUSAR), pp. 44-47. VDE Verlag GmbH. European Conference on Synthetic Aperture Radar (EUSAR), 2010-06-08 - 2010-06-10, Aachen, Deutschland.

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This paper presents results on SAR interferometry with the so-called TOPS mode. The rationale to retrieve accurate interferometric products with such a mode is expounded, emphasizing the critical step of coregistering the pairs. Due to the particularities of the TOPS mode, a high Doppler-centroid is present at burst edges, demanding very high azimuth coregistration performance. A coregistration accuracy of one tenth of a pixel, as it is usually recommended with interferometric applications, will result in a large undesired azimuth phase ramp in the TOPS mode, above all at X-band. This paper presents two approaches based on the spectral diversity technique to estimate this offset with the required accuracy. Experimental results with repeat-pass TerraSAR-X data are shown to validate the proposed approach.

Document Type:Conference or Workshop Item (Speech)
Title:TOPS Interferometry with TerraSAR-X
AuthorsInstitution or Email of Authors
Wollstadt, SteffenUNSPECIFIED
Date:8 June 2010
Journal or Publication Title:Proceedings of the European Conference on Synthetic Aperture Radar (EUSAR)
Refereed publication:Yes
In ISI Web of Science:No
Page Range:pp. 44-47
Publisher:VDE Verlag GmbH
Keywords:synthetic aperture radar (SAR), Terrain Observation by Progressive Scans (TOPS), interferometry
Event Title:European Conference on Synthetic Aperture Radar (EUSAR)
Event Location:Aachen, Deutschland
Event Type:international Conference
Event Dates:2010-06-08 - 2010-06-10
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 - Vorhaben Flugzeug-SAR (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > Radar Concepts
Microwaves and Radar Institute > SAR Technology
Deposited By: Dr. Pau Prats
Deposited On:17 Mar 2010 18:08
Last Modified:08 May 2014 23:21

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