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Numerical SAR Processing Scheme for Generic Very-High Resolution Spotlight Acquisitions

Linde-Cerezo, Alejandro and Rodriguez-Cassola, Marc and Alvarez-Perez, Jose Luis and Prats-Iraola, Pau and Moreira, Alberto (2016) Numerical SAR Processing Scheme for Generic Very-High Resolution Spotlight Acquisitions. In: Proceedings of the European Conference on Synthetic Aperture Radar (EUSAR). VDE Verlag GmbH. European Conference on Synthetic Aperture Radar (EUSAR), 2016-06-06 - 2016-06-09, Hamburg, Germany.

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The assumption of hyperbolical range histories is at the core of many conventional SAR image formation schemes. The model however breaks down in usual very-high resolution SAR cases, be it monostatic or bistatic. Whereas the accommodation of non-hyperbolical range histories has been sufficiently addressed in the literature on bistatic SAR, the handling of time and frequency folding has been paid far less attention. We put forward a purely numerical, yet efficient, SAR processing scheme for generic very-high resolution spotlight acquisitions based on SPECAN. The algorithm is basically composed of two distinct steps: a) a numerical range-variant SAR image formation kernel, and b) a numerical subaperture handler. Residual geometrical corrections may be reduced to a minimum with the use of the suggested methodology. The validity of the approach is demonstrated by showing results on simulated orbital raw data of a monostatic PAZ, and a bistatic TanDEM-X staring spotlight acquisition.

Item URL in elib:https://elib.dlr.de/103800/
Document Type:Conference or Workshop Item (Speech)
Title:Numerical SAR Processing Scheme for Generic Very-High Resolution Spotlight Acquisitions
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Linde-Cerezo, AlejandroUniversidad de Alcala de HenaresUNSPECIFIED
Alvarez-Perez, Jose LuisUniversidad de Alcala de HenaresUNSPECIFIED
Journal or Publication Title:Proceedings of the European Conference on Synthetic Aperture Radar (EUSAR)
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Publisher:VDE Verlag GmbH
Keywords:SAR, Bistatic SAR, Spaceborne SAR
Event Title:European Conference on Synthetic Aperture Radar (EUSAR)
Event Location:Hamburg, Germany
Event Type:international Conference
Event Dates:2016-06-06 - 2016-06-09
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Earth Observation
DLR - Research theme (Project):R - Aircraft SAR
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > SAR Technology
Deposited By: Rodriguez Cassola, Marc
Deposited On:07 Apr 2016 15:32
Last Modified:21 Dec 2016 14:48

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