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Digital Beamforming for HRWS-SAR Imaging - System Design, Performance and Optimization Strategies

Gebert, Nicolas and Krieger, Gerhard and Moreira, Alberto (2006) Digital Beamforming for HRWS-SAR Imaging - System Design, Performance and Optimization Strategies. In: IEEE Geoscience and Remote Sensing Symposium (IGARSS), p. 4. IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2006-07-31 - 2006-08-04, Denver, Colorado (USA). ISBN 0-7803-9510-7.

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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, optimization strategies are discussed to maximize the system’s performance by pattern tapering on transmit and “Pre-Beamshaping on Receive” networks that allow for pattern tapering on receive and adaptively adjust the virtual sample positions.

Document Type:Conference or Workshop Item (Speech, Paper)
Additional Information:©2006 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Title:Digital Beamforming for HRWS-SAR Imaging - System Design, Performance and Optimization Strategies
Authors:
AuthorsInstitution or Email of Authors
Gebert, NicolasUNSPECIFIED
Krieger, GerhardUNSPECIFIED
Moreira, AlbertoUNSPECIFIED
Date:July 2006
Journal or Publication Title:IEEE Geoscience and Remote Sensing Symposium (IGARSS)
Refereed publication:No
In ISI Web of Science:No
Page Range:p. 4
Editors:
EditorsEmail
IEEE, UNSPECIFIED
ISBN:0-7803-9510-7
Status:Published
Keywords:HRWS, High Resolution Wide Swath SAR, Digital Beamforming, Multi-Apertur Sampling
Event Title:IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
Event Location:Denver, Colorado (USA)
Event Type:international Conference
Event Dates:2006-07-31 - 2006-08-04
Organizer:IEEE
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:05 May 2008
Last Modified:12 Dec 2013 20:20

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