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Investigations on TOPS Interferometry with TerraSAR-X

Prats, Pau and Marotti, Luca and Wollstadt, Steffen and Scheiber, Rolf (2010) Investigations on TOPS Interferometry with TerraSAR-X. In: Proceedings of the IEEE Geoscience and Remote Sensing Symposium (IGARSS), pp. 1-4. IEEE. IEEE Geoscience and Remote Sensing Symposium (IGARSS), 26-07-2010 - 30-07-2010, Honolulu, Hawaii, USA.

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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)
Additional Information:©2010 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:Investigations on TOPS Interferometry with TerraSAR-X
AuthorsInstitution or Email of Authors
Wollstadt, SteffenUNSPECIFIED
Date:26 July 2010
Journal or Publication Title:Proceedings of the IEEE Geoscience and Remote Sensing Symposium (IGARSS)
Refereed publication:Yes
In ISI Web of Science:No
Page Range:pp. 1-4
Keywords:synthetic aperture radar (SAR), Terrain Observation by Progressive Scans (TOPS), interferometry
Event Title:IEEE Geoscience and Remote Sensing Symposium (IGARSS)
Event Location:Honolulu, Hawaii, USA
Event Type:international Conference
Event Dates:26-07-2010 - 30-07-2010
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:29 Mar 2010 09:57
Last Modified:08 May 2014 23:21

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