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Slow Pulse Repetition Interval Variation for High-Resolution Wide-Swath SAR Imaging

Queiroz de Almeida, Felipe and Younis, Marwan and Prats, Pau and Rodriguez Cassola, Marc and Krieger, Gerhard and Moreira, Alberto (2020) Slow Pulse Repetition Interval Variation for High-Resolution Wide-Swath SAR Imaging. IEEE Transactions on Geoscience and Remote Sensing. IEEE - Institute of Electrical and Electronics Engineers. doi: 10.1109/TGRS.2020.3023472. ISSN 0196-2892.

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Official URL: https://ieeexplore.ieee.org/document/9205586

Abstract

In the context of spaceborne synthetic aperture radar (SAR) imaging, high resolution and wide swath are inherently conflicting requirements. These may however be simultaneously satisfied by advanced imaging modes with multichannel architectures in elevation and/or azimuth. The paper elaborates on a new mode based on multiple elevation beams and a simple PRI variation scheme which allows highresolution wide-swath imaging. It is shown to use the illumination time more efficiently than ScanSAR and yet to be simpler than staggered SAR. Good SAR imaging performance is achieved with a rather compact antenna design. The proposed imaging mode is suitable for spaceborne SAR systems with planar and reflector antennas. In order to improve the imaging performance, a reflector antenna architecture with a multichannel feed in both elevation and azimuth is considered.

Item URL in elib:https://elib.dlr.de/136422/
Document Type:Article
Title:Slow Pulse Repetition Interval Variation for High-Resolution Wide-Swath SAR Imaging
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Queiroz de Almeida, FelipeFelipe.QueirozdeAlmeida (at) dlr.dehttps://orcid.org/0000-0001-5929-6633
Younis, Marwanmarwan.younis (at) dlr.dehttps://orcid.org/0000-0002-8563-7371
Prats, PauPau.Prats (at) dlr.dehttps://orcid.org/0000-0002-7583-2309
Rodriguez Cassola, MarcMarc.Rodriguez (at) dlr.deUNSPECIFIED
Krieger, GerhardGerhard.Krieger (at) dlr.dehttps://orcid.org/0000-0002-4548-0285
Moreira, AlbertoAlberto.Moreira (at) dlr.dehttps://orcid.org/0000-0002-3436-9653
Date:24 September 2020
Journal or Publication Title:IEEE Transactions on Geoscience and Remote Sensing
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
DOI :10.1109/TGRS.2020.3023472
Publisher:IEEE - Institute of Electrical and Electronics Engineers
ISSN:0196-2892
Status:Published
Keywords:Radar, Radar imaging, Spaceborne radar, Synthetic aperture radar, Digital beamforming, High resolution wide swath, SAR imaging modes
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 - Vorhaben Tandem-L Vorstudien (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > Radar Concepts
Deposited By: Queiroz de Almeida, Felipe
Deposited On:12 Oct 2020 10:54
Last Modified:06 Dec 2020 15:18

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