Prats-Iraola, Pau and Rodriguez-Cassola, Marc and De Zan, Francesco and Lopez-Dekker, Paco and Scheiber, Rolf and Reigber, Andreas (2014) Efficient Fourier-Based Evaluation of SAR Focusing Kernels. In: Proceedings of European Conference on Synthetic Aperture Radar (EUSAR), pp. 181-184. VDE Verlag GmbH. European Conference on Synthetic Aperture Radar (EUSAR), 2014-06-03 - 2014-06-05, Berlin, Germany.
![]() |
PDF
2MB |
Abstract
This contribution addresses the efficient evaluation of Fourier-based kernels for synthetic aperture radar (SAR) image formation. The goal is to evaluate the quality of the focused impulse response function and the residual phase errors of the kernel without having to implement the processor itself nor perform a costly point-target simulation followed by the processing. The proposed methodology is convenient for situations where the assumption of a hyperbolic range history does not hold anymore, and hence a compact analytic expression of the point target spectrum is not available. Examples where the hyperbolic range history does not apply include very high-resolution spaceborne SAR imaging or bistatic SAR imaging. The approach first computes numerically the two-dimensional (2D) spectrum of a point target and then uses the transfer function of the focusing kernel to match it, and hence obtain the impulse response function (IRF). The methodology is validated by comparing the matched IRFs with the ones obtained using point-target simulations.
Item URL in elib: | https://elib.dlr.de/88470/ | ||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Document Type: | Conference or Workshop Item (Speech) | ||||||||||||||||||||||||||||
Title: | Efficient Fourier-Based Evaluation of SAR Focusing Kernels | ||||||||||||||||||||||||||||
Authors: |
| ||||||||||||||||||||||||||||
Date: | 3 June 2014 | ||||||||||||||||||||||||||||
Journal or Publication Title: | Proceedings of European Conference on Synthetic Aperture Radar (EUSAR) | ||||||||||||||||||||||||||||
Refereed publication: | Yes | ||||||||||||||||||||||||||||
Open Access: | Yes | ||||||||||||||||||||||||||||
Gold Open Access: | No | ||||||||||||||||||||||||||||
In SCOPUS: | No | ||||||||||||||||||||||||||||
In ISI Web of Science: | No | ||||||||||||||||||||||||||||
Page Range: | pp. 181-184 | ||||||||||||||||||||||||||||
Publisher: | VDE Verlag GmbH | ||||||||||||||||||||||||||||
Status: | Published | ||||||||||||||||||||||||||||
Keywords: | Synthetic Aperture Radar, SAR processing, SAR simulation | ||||||||||||||||||||||||||||
Event Title: | European Conference on Synthetic Aperture Radar (EUSAR) | ||||||||||||||||||||||||||||
Event Location: | Berlin, Germany | ||||||||||||||||||||||||||||
Event Type: | international Conference | ||||||||||||||||||||||||||||
Event Dates: | 2014-06-03 - 2014-06-05 | ||||||||||||||||||||||||||||
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 Microwaves and Radar Institute > Radar Concepts Microwaves and Radar Institute > SAR Technology | ||||||||||||||||||||||||||||
Deposited By: | Prats, Dr. Pau | ||||||||||||||||||||||||||||
Deposited On: | 17 Mar 2014 08:08 | ||||||||||||||||||||||||||||
Last Modified: | 31 Jul 2019 19:45 |
Repository Staff Only: item control page