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Gracheva, Valeria and Kim, Jun Su and Prats-Iraola, Pau and Scheiber, Rolf and Rodriguez-Cassola, Marc (2021) Combined Estimation of Ionospheric Effects in SAR Images Exploiting Faraday Rotation and Autofocus. IEEE Geoscience and Remote Sensing Letters, pp. 1-5. IEEE - Institute of Electrical and Electronics Engineers. doi: 10.1109/LGRS.2021.3102597. ISSN 1545-598X.
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Official URL: https://ieeexplore.ieee.org/document/9515010
Abstract
At lower frequencies, synthetic aperture radar (SAR) images can be significantly affected by ionospheric scintillations. This letter proposes an approach to estimate ionospheric artifacts in single SAR images by combining Faraday rotation (FR) estimates and autofocus methods by using a Wiener filter. This novel approach achieves superior performance compared to using these techniques independently. This improvement is demonstrated by injecting randomly simulated ionospheric phase screens into simulated point targets and airborne data adjusted to the parameters of the Biomass system.
| Item URL in elib: | https://elib.dlr.de/146380/ | ||||||||||||||||||
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| Document Type: | Article | ||||||||||||||||||
| Additional Information: | ©2021 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE | ||||||||||||||||||
| Title: | Combined Estimation of Ionospheric Effects in SAR Images Exploiting Faraday Rotation and Autofocus | ||||||||||||||||||
| Authors: |
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| Date: | 17 August 2021 | ||||||||||||||||||
| Journal or Publication Title: | IEEE Geoscience and Remote Sensing Letters | ||||||||||||||||||
| Refereed publication: | Yes | ||||||||||||||||||
| Open Access: | No | ||||||||||||||||||
| Gold Open Access: | No | ||||||||||||||||||
| In SCOPUS: | Yes | ||||||||||||||||||
| In ISI Web of Science: | Yes | ||||||||||||||||||
| DOI: | 10.1109/LGRS.2021.3102597 | ||||||||||||||||||
| Page Range: | pp. 1-5 | ||||||||||||||||||
| Publisher: | IEEE - Institute of Electrical and Electronics Engineers | ||||||||||||||||||
| ISSN: | 1545-598X | ||||||||||||||||||
| Status: | Published | ||||||||||||||||||
| Keywords: | Autofocus, Faraday rotation (FR), ionospheric scintillations, synthetic aperture radar (SAR) | ||||||||||||||||||
| 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: | 29 Nov 2021 13:36 | ||||||||||||||||||
| Last Modified: | 24 May 2022 23:47 |
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