Proceedings ArticleDOI
Simulations of ground moving target indication in an ultrawideband and wide-beam SAR system
Mats I. Pettersson,Lars M. H. Ulander,H. Hellsten +2 more
- Vol. 3810, pp 84-95
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TLDR
In this article, the methods for ground moving target identification (GMTI) in a bistatic ultra wideband and wide-beam (UWB-WB) SAR system are discussed.Abstract:
This paper discusses the methods for ground moving target identification (GMTI) in a bistatic ultra-wideband and wide- beam (UWB-WB) SAR system. Simulations of GMTI in UWB-WB SAR system are shown. Bistatic compensation in a time domain SAR processing system is given, and clutter leakage caused by bistatic radar and time domain fast backprojection SAR algorithms is studied. The clutter leakage is investigated both for the scatter and for the sidelobes of the scatter. In the paper we also discuss clutter leakage caused by bistatic scattering. As the scatter size increases the bistatic wave will scatter differently then the monostatic wave. Also the effect of bistatic nadir and antenna configuration is studied.read more
Citations
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Journal ArticleDOI
Detection of moving targets in wideband SAR
TL;DR: In this article, a likelihood ratio is proposed for moving target detection in a wideband (WB) synthetic aperture radar (SAR) system, which is defined as any system having a large fractional bandwidth combined with a wide antenna beam.
Patent
A synthetic aperture radar system capable of detecting moving targets
TL;DR: In this article, a Synthetic Aperture Radar (SAR) system capable of detecting moving targets is presented, which consists of a platform which moves over a number of objects, e.g. in the form of a ground surface, and supports radar equipment which reproduces the objects by means of a fast backprojection synthetic aperture technique via at least two antennas.
Focusing Moving Targets Using Range Migration Algorithm in Ultra Wideband Low Frequency Synthetic Aperture Radar
TL;DR: In this paper, an image processing of an airborne monostatic SAR has been studied and the main intention has been to take care of the defocused image of the moving target and to refocus it by the method proposed for RMA.
References
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Radar polarimetry for geoscience applications
Fawwaz T. Ulaby,Charles Elachi +1 more
TL;DR: In this paper, a volume on radar polarimetry for geoscience applications discusses wave properties and polarization, scattering matrix representation for simple targets, scattering models for point and distributed targets, polarimetric scatterometer systems and measurements.
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Synthetic Aperture Imaging Radar and Moving Targets
TL;DR: In this paper, the effects of slowly moving targets as they appear in the output of an airborne coherent side-looking synthetic aperture imaging radar are considered, and two approaches to airborne moving target indication (AMTI) are summarized.
Journal ArticleDOI
Bistatic synthetic aperture radar inversion with application in dynamic object imaging
TL;DR: The bistatic SAR inversion is also utilized to formulate an inversion for multistatic measurements made along a physical linear array due to a single transmission to image a dynamic object.
Radar polarimetry for geoscience applications
Fawwaz T. Ulaby,Charles Elachi +1 more
TL;DR: In this article, a volume on radar polarimetry for geoscience applications discusses wave properties and polarization, scattering matrix representation for simple targets, scattering models for point and distributed targets, polarimetric scatterometer systems and measurements.
Proceedings ArticleDOI
Low-frequency ultrawideband array-antenna SAR for stationary and moving target imaging
Lars M. H. Ulander,H. Hellsten +1 more
TL;DR: Time-domain signal processing is emphasized, and time-domain SAR algorithms to simultaneously focus both stationary and moving targets are formulated, and the computational effort is dramatically reduced by factorization into a number of recursive stages.