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Simultaneous Single-/Dual- and Quad-Pol SAR Imaging over Swaths of Different Widths

Villano, Michelangelo and Krieger, Gerhard and Steinbrecher, Ulrich and Moreira, Alberto (2020) Simultaneous Single-/Dual- and Quad-Pol SAR Imaging over Swaths of Different Widths. IEEE Transactions on Geoscience and Remote Sensing, 58 (3), pp. 2096-2103. IEEE - Institute of Electrical and Electronics Engineers. doi: 10.1109/TGRS.2019.2953098. ISSN 0196-2892.

[img] PDF - Postprint version (accepted manuscript)

Official URL: https://ieeexplore.ieee.org/document/8930081


Synthetic aperture radar (SAR) concepts based on digital beamforming (DBF) in elevation and multiple receive beams, e.g., staggered SAR, allow high-resolution imaging of wide swaths and are therefore well suited for the systematic observation of dynamic processes on the Earth’s surface. While these concepts are compatible with quad-polarimetric (quad-pol) operation, due to severe ambiguity constraints, the achievable swath in quad-pol mode is narrower than in single- (or dual-) pol mode. Therefore, either single- (or dual-) pol data over a wider swath or quad-pol data over a narrower swath can be acquired. This paper proposes a novel SAR acquisition mode, based on pulse-to-pulse alternation of the antenna pattern on transmit, that delivers at the same time single- (or dual-) pol data over a wider swath and quad-pol data over a narrower swath at the expense of an acceptable degradation of the ambiguity performance. This technique yields remarkable benefits for the design and operation of future SAR systems and represents an effective solution to manage and resolve conflicting user requirements.

Item URL in elib:https://elib.dlr.de/132729/
Document Type:Article
Title:Simultaneous Single-/Dual- and Quad-Pol SAR Imaging over Swaths of Different Widths
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Villano, MichelangeloUNSPECIFIEDhttps://orcid.org/0000-0002-1769-6927UNSPECIFIED
Krieger, GerhardUNSPECIFIEDhttps://orcid.org/0000-0002-4548-0285UNSPECIFIED
Steinbrecher, UlrichUNSPECIFIEDhttps://orcid.org/0000-0002-3704-3886UNSPECIFIED
Moreira, AlbertoUNSPECIFIEDhttps://orcid.org/0000-0002-3436-9653UNSPECIFIED
Date:March 2020
Journal or Publication Title:IEEE Transactions on Geoscience and Remote Sensing
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:Yes
Page Range:pp. 2096-2103
Publisher:IEEE - Institute of Electrical and Electronics Engineers
Keywords:Ambiguities, digital beamforming, high-resolution wide-swath (HRWS) imaging, dual-polarimetric SAR, quad-polarimetric SAR, staggered SAR, synthetic aperture radar (SAR), Tandem-L.
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
Microwaves and Radar Institute > Radar Concepts
Microwaves and Radar Institute > Spaceborne SAR Systems
Deposited By: Villano, Dr.-Ing. Michelangelo
Deposited On:13 Dec 2019 13:45
Last Modified:18 Feb 2022 11:27

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