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High Precision SAR Focusing of TerraSAR-X Experimental Staring Spotlight Data

Prats, Pau and Scheiber, Rolf and Rodríguez-Cassolà, Marc and Wollstadt, Steffen and Mittermayer, Josef and Bräutigam, Benjamin and Schwerdt, Marco and Reigber, Andreas and Moreira, Alberto (2012) High Precision SAR Focusing of TerraSAR-X Experimental Staring Spotlight Data. In: Proceedings of the IEEE International Geoscience and Remote Sensing Symposium (IGARSS), pp. 1-4. IEEE. IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2012-07-23 - 2012-07-27, Munich, Germany.

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Official URL: http://www.igarss2012.org/


This paper addresses several innovative steps needed in the chirp scaling and extended chirp scaling (ECS) algorithms in order to process staring Spotlight TerraSAR-X (TSX) images with 21 cm azimuth resolution and 300 MHz range bandwidth. The aspects that need of special consideration are the 2D phase truncation in frequency domain of ECS, the element pattern of the antenna array, the curved orbit, the stop-and-go approximation, and the troposphere. All these aspects are expounded in detail and a solution is given for each of them. The suggested corrections are applied at raw data level, hence easing the integration within the existing TSX processor. Real data acquired by TSX in the experimental staring Spotlight mode are used to validate the proposed methodology.

Document Type:Conference or Workshop Item (Speech)
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:High Precision SAR Focusing of TerraSAR-X Experimental Staring Spotlight Data
AuthorsInstitution or Email of Authors
Rodríguez-Cassolà, MarcUNSPECIFIED
Wollstadt, SteffenUNSPECIFIED
Mittermayer, JosefUNSPECIFIED
Bräutigam, BenjaminUNSPECIFIED
Schwerdt, MarcoUNSPECIFIED
Reigber, AndreasUNSPECIFIED
Moreira, AlbertoUNSPECIFIED
Date:25 July 2012
Journal or Publication Title:Proceedings of the IEEE International 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), Spotlight, SAR processing, troposphere
Event Title:IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
Event Location:Munich, Germany
Event Type:international Conference
Event Dates:2012-07-23 - 2012-07-27
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 TanDEM-X (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > Radar Concepts
Microwaves and Radar Institute > Spaceborne SAR Systems
Microwaves and Radar Institute > SAR Technology
Deposited By: Dr. Pau Prats
Deposited On:26 Jun 2012 10:06
Last Modified:08 May 2014 23:23

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