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On-Ground RFI Removal from SAR Images with DBF-based Measurements and Autoregressive Modelling

Bollian, Tobias and Younis, Marwan and Krieger, Gerhard (2021) On-Ground RFI Removal from SAR Images with DBF-based Measurements and Autoregressive Modelling. In: Proceedings of the European Conference on Synthetic Aperture Radar, EUSAR. European Conference on Synthetic Aperture Radar (EUSAR), 2021-03-29 - 2021-04-01, Leipzig, Germany. ISSN 2197-4403.

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Abstract

The next generation of Synthetic Aperture Radar (SAR) instruments is capable of Digital Beamforming (DBF), which can suppress Radio Frequency Interference (RFI) via spatial filtering. However, previously presented RFI mitigation methods based on DBF are only effective while the instantaneous SAR return and the RFI originate from different locations. In the presence of in-swath interferers, short gaps, corrupted with RFI, remain in the data. This paper overcomes this limitation by measuring RFI while it is spatially orthogonal to the SAR signal. The extracted RFI is then used to estimate the interference in the remaining gaps with an autoregressive model.

Item URL in elib:https://elib.dlr.de/130452/
Document Type:Conference or Workshop Item (Speech)
Title:On-Ground RFI Removal from SAR Images with DBF-based Measurements and Autoregressive Modelling
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Bollian, TobiasTobias.Bollian (at) dlr.deUNSPECIFIED
Younis, Marwanmarwan.younis (at) dlr.dehttps://orcid.org/0000-0002-8563-7371
Krieger, GerhardGerhard.Krieger (at) dlr.dehttps://orcid.org/0000-0002-4548-0285
Date:April 2021
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:Yes
In ISI Web of Science:No
ISSN:2197-4403
Status:Accepted
Keywords:Synthetic Aperture Radar, Digital Beamforming, Radio Frequency Interference
Event Title:European Conference on Synthetic Aperture Radar (EUSAR)
Event Location:Leipzig, Germany
Event Type:national Conference
Event Dates:2021-03-29 - 2021-04-01
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 - Development of a mini-SAR
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > Radar Concepts
Deposited By: Bollian, Tobias
Deposited On:12 Nov 2019 16:02
Last Modified:29 Mar 2021 22:03

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