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Nguyen Thi, Phuong Mai and Rodriguez Cassola, Marc and Krieger, Gerhard (2022) A Proposed Algorithm for Range Ambiguities Suppression in Multi-Static SAR. In: 2022 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2022, 1852 -1855. IEEE. IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2022-07-17 - 2022-07-22, Kuala Lumpur, Malaysia. doi: 10.1109/IGARSS46834.2022.9884829. ISBN 978-166542792-0.
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Official URL: https://ieeexplore.ieee.org/document/9884829/authors#authors
Abstract
In a conventional synthetic aperture radar (SAR), good azimuth resolution and wide coverage pose contradicting requirements for the pulse repetition frequency (PRF). With a PRF tailored to a desired resolution, range ambiguities is then the main obstacle to a wide swath imaging. This paper proposes a method, based on a minimum variance distortion-less response (MVDR) beam former, to suppress range ambiguities, in range Doppler domain, via a coherent combination of echoes from multiple satellites maneuvering in a close formation. Numerical results in L band confirm validity of the approach. Limits of the technique and main difficulties in improving suppression performance are also discussed.
| Item URL in elib: | https://elib.dlr.de/192953/ | ||||||||||||||||
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| Document Type: | Conference or Workshop Item (Speech) | ||||||||||||||||
| Title: | A Proposed Algorithm for Range Ambiguities Suppression in Multi-Static SAR | ||||||||||||||||
| Authors: |
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| Date: | July 2022 | ||||||||||||||||
| Journal or Publication Title: | 2022 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2022 | ||||||||||||||||
| Refereed publication: | Yes | ||||||||||||||||
| Open Access: | No | ||||||||||||||||
| Gold Open Access: | No | ||||||||||||||||
| In SCOPUS: | Yes | ||||||||||||||||
| In ISI Web of Science: | No | ||||||||||||||||
| DOI: | 10.1109/IGARSS46834.2022.9884829 | ||||||||||||||||
| Page Range: | 1852 -1855 | ||||||||||||||||
| Publisher: | IEEE | ||||||||||||||||
| Series Name: | IEEE Explore | ||||||||||||||||
| ISBN: | 978-166542792-0 | ||||||||||||||||
| Status: | Published | ||||||||||||||||
| Keywords: | Range ambiguities, multi-static SAR, across-track formation, digital beam forming | ||||||||||||||||
| Event Title: | IEEE International Geoscience and Remote Sensing Symposium (IGARSS) | ||||||||||||||||
| Event Location: | Kuala Lumpur, Malaysia | ||||||||||||||||
| Event Type: | international Conference | ||||||||||||||||
| Event Dates: | 2022-07-17 - 2022-07-22 | ||||||||||||||||
| Organizer: | IEEE | ||||||||||||||||
| 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 - SAR methods | ||||||||||||||||
| Location: | Oberpfaffenhofen | ||||||||||||||||
| Institutes and Institutions: | Microwaves and Radar Institute > Radar Concepts | ||||||||||||||||
| Deposited By: | Radzuweit, Sibylle | ||||||||||||||||
| Deposited On: | 09 Jan 2023 07:43 | ||||||||||||||||
| Last Modified: | 13 Jan 2023 15:21 |
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