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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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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
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Queiroz de Almeida, FelipeUNSPECIFIEDhttps://orcid.org/0000-0001-5929-6633UNSPECIFIED
Krieger, GerhardUNSPECIFIEDhttps://orcid.org/0000-0002-4548-0285UNSPECIFIED
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 ISI Web of Science:No
Page Range:pp. 1-6
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 Start Date:6 June 2016
Event End Date:9 June 2016
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:15 Nov 2016 15:51
Last Modified:24 Apr 2024 20:08

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