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Simultaneous High-Resolution Wide-Swath SAR Imaging and Ground Moving Target Indication: Processing Approaches and System Concepts

Baumgartner, Stefan V. and Krieger, Gerhard (2015) Simultaneous High-Resolution Wide-Swath SAR Imaging and Ground Moving Target Indication: Processing Approaches and System Concepts. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 8 (11), pp. 5015-5029. IEEE - Institute of Electrical and Electronics Engineers. doi: 10.1109/JSTARS.2015.2450019. ISSN 1939-1404.

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Abstract

In this paper a novel method for enabling ground moving target capability for high-resolution wide-swath (HRWS) Synthetic Aperture Radar (SAR) systems is presented. Such HRWS SAR systems are generally operated with very low pulse repetition frequencies (PRFs). With the novel method moving target signals highly aliased in Doppler can be reconstructed and the targets' motion parameters and actual positions can be estimated with high accuracy. A special matched reconstruction filter bank (MRFB) is introduced and incorporated into two novel low PRF ground moving target indication (GMTI) algorithms. Owing to the application of the MRFB, GMTI and HRWS SAR imaging can be performed simultaneously without the need of a separate high PRF system operation mode, which so far was necessary for achieving a reasonable GMTI performance. With the MRFB the advantages of the HRWS imaging principle, i.e., the wide swath and the high resolution, are preserved for both HRWS SAR imaging and GMTI. Potential applications are wide-area land and maritime traffic monitoring, where the benefit of the preserved high resolution could, for instance, be used for generating high-quality inverse SAR (ISAR) images for target recognition purposes.

Item URL in elib:https://elib.dlr.de/94669/
Document Type:Article
Title:Simultaneous High-Resolution Wide-Swath SAR Imaging and Ground Moving Target Indication: Processing Approaches and System Concepts
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Baumgartner, Stefan V.UNSPECIFIEDUNSPECIFIED
Krieger, GerhardUNSPECIFIEDUNSPECIFIED
Date:November 2015
Journal or Publication Title:IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:8
DOI :10.1109/JSTARS.2015.2450019
Page Range:pp. 5015-5029
Publisher:IEEE - Institute of Electrical and Electronics Engineers
ISSN:1939-1404
Status:Published
Keywords:Synthetic Aperture Radar, SAR, Ground Moving Target Indication, GMTI, Array Processing, Digital Beamforming, DBF, High-Resolution Wide-Swath SAR, HRWS, Traffic Monitoring, Marine Traffic Monitoring, Ship Detection, Space-Based SAR, Multi-Channel SAR, Along-Track Interferometry, ATI, Space-Time Adaptive Processing, STAP
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Traffic Management (old)
DLR - Research area:Transport
DLR - Program:V VM - Verkehrsmanagement
DLR - Research theme (Project):V - Vabene++ (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > Radar Concepts
Deposited By: Baumgartner, Dr.-Ing. Stefan V.
Deposited On:16 Jan 2015 11:41
Last Modified:24 Nov 2020 04:12

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