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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Abstract
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/ | ||||||||||||||||||
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Document Type: | Conference or Workshop Item (Speech) | ||||||||||||||||||
Title: | Numerical SAR Processing Scheme for Generic Very-High Resolution Spotlight Acquisitions | ||||||||||||||||||
Authors: |
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Date: | 2016 | ||||||||||||||||||
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 SCOPUS: | No | ||||||||||||||||||
In ISI Web of Science: | No | ||||||||||||||||||
Publisher: | VDE Verlag GmbH | ||||||||||||||||||
Status: | Published | ||||||||||||||||||
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 | ||||||||||||||||||
Organizer: | VDE | ||||||||||||||||||
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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