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Multichannel Staggered SAR Azimuth Sample Regularization

Queiroz de Almeida, Felipe and Krieger, Gerhard (2016) Multichannel Staggered SAR Azimuth Sample Regularization. In: Proceedings of EUSAR 2016: 11th European Conference on Synthetic Aperture Radar, Hamburg, Germany, 2016, pp. 1-6. European Conference on Synthetic Aperture Radar (EUSAR), 2016-06-06 - 2016-06-09, Hamburg, Germany.

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Abstract

Next-generation spaceborne SAR systems pose demanding and contradicting requirements on system design, owing to the increasing need to cover ultra-wide swaths with high azimuth resolution, as required for numerous applications. To this end, a large number of multichannel SAR system concepts have been proposed that employ digital beamforming on receive with planar arrays, and more recently also with reflector antennas. A promising concept is staggered SAR which uses a single azimuth channel and multiple elevation beams together with variable pulse repetition intervals to map an arbitrary wide swath with medium resolution. To improve the azimuth resolution, this paper extends the staggered SAR concept to a system configuration with multiple azimuth channels. For this, a new multichannel azimuth processing technique is introduced that combines staggered SAR gap interpolation with multi-channel SAR signal reconstruction. Simulations of a Tandem-L-like reflector SAR system with three azimuth channels show that this technique yields an excellent performance over a 350 km wide swath that is mapped with 3.0 m azimuth resolution.

Item URL in elib:https://elib.dlr.de/103233/
Document Type:Conference or Workshop Item (Speech)
Title:Multichannel Staggered SAR Azimuth Sample Regularization
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Queiroz de Almeida, FelipeUNSPECIFIEDhttps://orcid.org/0000-0001-5929-6633
Krieger, GerhardUNSPECIFIEDhttps://orcid.org/0000-0002-4548-0285
Date:2016
Journal or Publication Title:Proceedings of EUSAR 2016: 11th European Conference on Synthetic Aperture Radar, Hamburg, Germany, 2016
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 1-6
Status:Published
Keywords:Synthetic Aperture Radar, HRWS, Multichannel SAR, Staggered SAR
Event Title:European Conference on Synthetic Aperture Radar (EUSAR)
Event Location:Hamburg, Germany
Event Type:international Conference
Event Dates:2016-06-06 - 2016-06-09
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 > Radar Concepts
Deposited By: Queiroz de Almeida, Felipe
Deposited On:15 Nov 2016 15:51
Last Modified:31 Jul 2019 20:00

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