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A SAR Processing Algorithm for TOPS Imaging Mode Based on Extended Chirp Scaling

Prats, Pau and Scheiber, Rolf and Mittermayer, Josef and Meta, Adriano and Sanz-Marcos, Jesus and Moreira, Alberto (2007) A SAR Processing Algorithm for TOPS Imaging Mode Based on Extended Chirp Scaling. In: Proceedings of the IEEE Geoscience and Remote Sensing Symposium (IGARSS), p. 4. IEEE. IEEE Geoscience and Remote Sensing Symposium (IGARSS), 2007-07-23 - 2007-07-27, Barcelona, Spain.

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This paper presents an efficient phase preserving processor for 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. An algorithm based on ECS (Extended Chirp Scaling) is proposed, which uses sub-apertures and a new azimuth scaling step. The proposed solution is also efficient in the sense that it allows selecting the final azimuth image spacing by means of azimuth scaling, hence easing the forthcoming mosaicking of the different subswaths. Simulations with point targets are used to validate the processor.

Document Type:Conference or Workshop Item (Speech, Paper)
Additional Information:©2007 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:A SAR Processing Algorithm for TOPS Imaging Mode Based on Extended Chirp Scaling
AuthorsInstitution or Email of Authors
Mittermayer, JosefUNSPECIFIED
Sanz-Marcos, JesusUniversitat Politècnica de Catalunya (UPC)
Moreira, AlbertoUNSPECIFIED
Date:July 2007
Journal or Publication Title:Proceedings of the IEEE Geoscience and Remote Sensing Symposium (IGARSS)
Refereed publication:No
In ISI Web of Science:No
Page Range:p. 4
Keywords:SAR processing, scansar, tops, sliding-spotlight
Event Title:IEEE Geoscience and Remote Sensing Symposium (IGARSS)
Event Location:Barcelona, Spain
Event Type:international Conference
Event Dates:2007-07-23 - 2007-07-27
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 TerraSAR-X Nutzlastbodensegment (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute
Microwaves and Radar Institute > SAR Technology
Deposited By: Dr. Pau Prats
Deposited On:31 Jul 2007
Last Modified:12 Dec 2013 20:26

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