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TOPS Interferometry with TerraSAR-X

Prats-Iraola, Pau and Scheiber, Rolf and Marotti, Luca and Wollstadt, Steffen and Reigber, Andreas (2012) TOPS Interferometry with TerraSAR-X. IEEE Transactions on Geoscience and Remote Sensing, 50 (8), pp. 3179-3188. IEEE. DOI: 10.1109/TGRS.2011.2178247.

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This paper presents results on SAR interferometry for data acquired in the so-called TOPS imaging mode. The rationale to retrieve accurate interferometric products with such a mode is expounded, emphasizing the critical step of coregistration. Due to the particularities of the TOPS mode, a high Doppler centroid is present at burst edges, demanding a very high azimuth coregistration performance. A coregistration accuracy of around one tenth of a pixel, as it is usually recommended for stripmap interferometric data, could result in large undesired azimuth phase ramps in each TOPS burst. This paper presents two approaches based on the spectral diversity technique to precisely estimate this coregistration offset with the required accuracy and evaluates their performance. Repeat-pass TOPS data acquired experimentally by TerraSAR-X are shown to validate the proposed approaches.

Document Type:Article
Additional Information:�©2012 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE
Title:TOPS Interferometry with TerraSAR-X
AuthorsInstitution or Email of Authors
Prats-Iraola, PauUNSPECIFIED
Wollstadt, SteffenUNSPECIFIED
Reigber, AndreasUNSPECIFIED
Date:August 2012
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. 3179-3188
Keywords:Coregistration, SAR interferometry, synthetic aperture radar (SAR), terrain observation by progressive scans (TOPS), TOPS interferometry
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:16 Jun 2011 11:28
Last Modified:12 Dec 2013 21:18

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