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Improving the Focusing Properties of SAR Processors for Wide-band and Wide-beam Low Frequency Imaging
Potsis, Athanasios and Reigber, Andreas and Mittermayer, Josef and Moreira, Alberto and Uzunoglou, Nikos (2001) Improving the Focusing Properties of SAR Processors for Wide-band and Wide-beam Low Frequency Imaging. In: Proceedings of IGARSS 2001, p. 3. Institute of Electrical and Electronics Engineers, Inc. (IEEE). IEEE 2001 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS 2001), 2001-07-09 - 2001-07-13, University of New South Wales, Sydney, Australia. ISBN 0-7803-7031-7.
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Abstract
An increasing amount of interest has been evolved in VHF/UHF SAR applications. These radars have proven to be a very powerful method for underground and obscured object detection as well as for parameter retrieval purposes. For new upcoming applications, high-resolution VHF/UHF SAR imaging is an important task, but cannot be achieved easily with conventional SAR processing techniques. A new algorithm is presented in this paper, which modifies the azimuth compression step of the Extended Chirp Scaling (ECS) algorithm [1]. It provides high azimuth resolution also for high squint or wide swath. Additionally, the effect of strong motion errors in wide-beam azimuth processing is analysed and discussed, using simulated data as well as data collected by the airborne experimental SAR system of DLR (E-SAR) in P-band. In this context, a sub-aperture approach for motion error compensation in wide-beam azimuth processing is also presented.
| Document Type: | Conference or Workshop Item (Speech, Paper) | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Title: | Improving the Focusing Properties of SAR Processors for Wide-band and Wide-beam Low Frequency Imaging | ||||||||||||
| Authors: |
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| Date: | July 2001 | ||||||||||||
| Journal or Publication Title: | Proceedings of IGARSS 2001 | ||||||||||||
| Refereed publication: | No | ||||||||||||
| In SCOPUS: | No | ||||||||||||
| In ISI Web of Science: | No | ||||||||||||
| Page Range: | p. 3 | ||||||||||||
| Publisher: | Institute of Electrical and Electronics Engineers, Inc. (IEEE) | ||||||||||||
| ISBN: | 0-7803-7031-7 | ||||||||||||
| Status: | Published | ||||||||||||
| Keywords: | SAR | ||||||||||||
| Event Title: | IEEE 2001 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS 2001) | ||||||||||||
| Event Location: | University of New South Wales, Sydney, Australia | ||||||||||||
| Event Type: | international Conference | ||||||||||||
| Event Dates: | 2001-07-09 - 2001-07-13 | ||||||||||||
| Organizer: | IEEE | ||||||||||||
| HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||
| HGF - Program: | Space | ||||||||||||
| HGF - Program Themes: | W EO - Erdbeobachtung | ||||||||||||
| DLR - Research area: | Space | ||||||||||||
| DLR - Program: | W EO - Erdbeobachtung | ||||||||||||
| DLR - Research theme (Project): | W -- no assignement (old) | ||||||||||||
| Location: | Oberpfaffenhofen | ||||||||||||
| Institutes and Institutions: | Microwaves and Radar Institute Microwaves and Radar Institute > Spaceborne SAR Systems | ||||||||||||
| Deposited By: | Dr.-Ing. Josef Mittermayer | ||||||||||||
| Deposited On: | 22 Mar 2006 | ||||||||||||
| Last Modified: | 27 Apr 2009 05:04 |
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