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A TOPSAR Processing Algorithm Based on Extended Chirp Scaling: Evaluation with TerraSAR-X Data

Prats, Pau and Meta, Adriano and Scheiber, Rolf and Mittermayer, Josef and Sanz-Marcos, Jesús and Moreira, Alberto (2008) A TOPSAR Processing Algorithm Based on Extended Chirp Scaling: Evaluation with TerraSAR-X Data. In: Proceedings of the European Conference on Synthetic Aperture Radar (EUSAR), p. 4. VDE Verlag GmbH. European Conference on Synthetic Aperture Radar (EUSAR), 2008-06-02 - 2008-06-05, Friedrichshafen, Germany. ISBN 978-3-8007-3084-1.

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Abstract

This paper presents an efficient phase preserving processor for the TOPS (Terrain Observation by Progressive Scans) imaging mode. TOPS has been proposed as a new wide swath imaging mode, which solves the problems of scalloping and azimuth-varying ambiguities introduced by the conventional ScanSAR mode by means of steering the antenna along the azimuth direction. The TOPS signal includes particularities of both ScanSAR and Spotlights modes, but existing processing algorithms do not provide an efficient processing of TOPS data. This paper presents an algorithm based on Extended Chirp Scaling (ECS) together with a new azimuth scaling step. The proposed solution allows also the selection of the final azimuth image sampling without the need of interpolations, hence easing the forthcoming mosaicking of the different subswaths. Real data acquired by TerraSAR-X are used to validate the processor.

Document Type:Conference or Workshop Item (Paper, Poster)
Title:A TOPSAR Processing Algorithm Based on Extended Chirp Scaling: Evaluation with TerraSAR-X Data
Authors:
AuthorsInstitution or Email of Authors
Prats, PauUNSPECIFIED
Meta, AdrianoUNSPECIFIED
Scheiber, RolfUNSPECIFIED
Mittermayer, JosefUNSPECIFIED
Sanz-Marcos, JesúsCota Cero Arquitectura y Algoritmica S.L.
Moreira, AlbertoUNSPECIFIED
Date:June 2008
Journal or Publication Title:Proceedings of the European Conference on Synthetic Aperture Radar (EUSAR)
Refereed publication:No
In ISI Web of Science:No
Page Range:p. 4
Publisher:VDE Verlag GmbH
ISBN:978-3-8007-3084-1
Status:Published
Keywords:synthetic aperture radar (SAR), SAR processing, azimuth scaling
Event Title:European Conference on Synthetic Aperture Radar (EUSAR)
Event Location:Friedrichshafen, Germany
Event Type:international Conference
Event Dates:2008-06-02 - 2008-06-05
Organizer:VDE
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
Microwaves and Radar Institute > Spaceborne SAR Systems
Microwaves and Radar Institute > SAR Technology
Deposited By: Dr. Pau Prats
Deposited On:25 Aug 2008
Last Modified:12 Dec 2013 20:30

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