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High Resolution Wide Swath SAR Imaging with Digital Beamforming - Performance Analysis, Optimization, System Design

Gebert, Nicolas and Krieger, Gerhard and Moreira, Alberto (2006) High Resolution Wide Swath SAR Imaging with Digital Beamforming - Performance Analysis, Optimization, System Design. In: European Conference on Synthetic Aperture Radar (EUSAR), p. 4. VDE Verlag GmbH. European Conference on Synthetic Aperture Radar (EUSAR), 2006-05-16 - 2006-05-18, Dresden, Germany. ISBN 3-8007-2960-1.

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Abstract

Multi-aperture synthetic aperture radar (SAR) systems in combination with an appropriate coherent processing of the individual aperture signals enable high resolution wide swath (HRWS) SAR imaging. An innovative reconstruction algorithm for such a digital beamforming on receive was presented that allows for HRWS even in case of a non-uniformly sampled data array in azimuth. This paper will compare this algorithm to different azimuth processing strate­gies regarding their performance in dependency of the overall sampling. Further, the algorithm is characterized theoretically regarding aliasing and residual ambiguities. In this context, optimization strategies are discussed to maximize the system’s performance by pattern tapering on transmit and “Pre-Beamshaping on Receive” networks that adaptively adjust the virtual sample positions.

Document Type:Conference or Workshop Item (Speech, Paper)
Title:High Resolution Wide Swath SAR Imaging with Digital Beamforming - Performance Analysis, Optimization, System Design
Authors:
AuthorsInstitution or Email of Authors
Gebert, NicolasUNSPECIFIED
Krieger, GerhardUNSPECIFIED
Moreira, AlbertoUNSPECIFIED
Date:May 2006
Journal or Publication Title:European Conference on Synthetic Aperture Radar (EUSAR)
Refereed publication:No
In ISI Web of Science:No
Page Range:p. 4
Editors:
EditorsEmail
VDE, UNSPECIFIED
Publisher:VDE Verlag GmbH
ISBN:3-8007-2960-1
Status:Published
Keywords:HRWS, High Resolution Wide Swath SAR, Digital Beamforming, Multi-Aperture
Event Title:European Conference on Synthetic Aperture Radar (EUSAR)
Event Location:Dresden, Germany
Event Type:international Conference
Event Dates:2006-05-16 - 2006-05-18
Organizer:VDE
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:Space
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):W - Vorhaben Entwicklung eines Mini-SAR (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute
Microwaves and Radar Institute > Spaceborne SAR Systems
Deposited By: Nicolas Gebert
Deposited On:06 Jun 2006
Last Modified:12 Dec 2013 20:20

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