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A Novel Imaging Mode for Simultaneous Single-/Dual- and Quad-Pol SAR Acquisition over Swaths of Different Widths

Villano, Michelangelo and Steinbrecher, Ulrich and Krieger, Gerhard and Moreira, Alberto (2019) A Novel Imaging Mode for Simultaneous Single-/Dual- and Quad-Pol SAR Acquisition over Swaths of Different Widths. IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2019-07-28 - 2019-08-02, Yokohama, Japan.

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Abstract

Synthetic aperture radar (SAR) concepts based on digital beamforming (DBF) in elevation and either multiple azimuth channels or 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/127143/
Document Type:Conference or Workshop Item (Speech)
Title:A Novel Imaging Mode for Simultaneous Single-/Dual- and Quad-Pol SAR Acquisition over Swaths of Different Widths
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Villano, MichelangeloMichelangelo.Villano (at) dlr.dehttps://orcid.org/0000-0002-1769-6927
Steinbrecher, UlrichUlrich.Steinbrecher (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:2019
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:SAR, staggered SAR, single-pol, dual-pol, quad-pol
Event Title:IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
Event Location:Yokohama, Japan
Event Type:international Conference
Event Dates:2019-07-28 - 2019-08-02
Organizer:IEEE GRSS
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Vorhaben Tandem-L Vorstudien
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute
Deposited By: Villano, Dr.-Ing. Michelangelo
Deposited On:15 Apr 2019 08:39
Last Modified:11 Sep 2019 08:02

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