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2022 19th European Radar Conference (EuRAD), 2022
This paper presents a W-band Ground-based Synthetic Aperture Radar system able to acquire high resolution 3D images in just about 10 minutes. Resolution in both the horizontal plane and in elevation are obtained through mechanical scanning of the radar head along two orthogonal directions.
Alessandra Beni +3 more
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This paper presents a W-band Ground-based Synthetic Aperture Radar system able to acquire high resolution 3D images in just about 10 minutes. Resolution in both the horizontal plane and in elevation are obtained through mechanical scanning of the radar head along two orthogonal directions.
Alessandra Beni +3 more
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Performance analysis of sparse 3D SAR imaging
SPIE Proceedings, 2011This paper addresses the question of scattering center detection and estimation performance in synthetic aperture radar. Specifically, we consider sparse 3D radar apertures, in which the radar collects both azimuth and elevation diverse data of a scene, but collects only a sparse subset of the traditional filled aperture.
Christian D. Austin +2 more
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Autofocus for 3D imaging with multipass SAR
SPIE Proceedings, 2010The emergence of 3D imaging from multipass radar collections motivates the need for 3D autofocus. While several effective methods exist to coherently align radar pulses for 2D image formation from a single elevation pass, further methods are needed to appropriately align radar collection surfaces from pass to pass.
Noah Boss, Emre Ertin, Randolph Moses
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3D Imaging of Ground based SAR Data
IGARSS 2008 - 2008 IEEE International Geoscience and Remote Sensing Symposium, 2008Ground-based SAR systems play a key role in active microwave remote sensing in many areas of environmental risk monitoring. Real time capability and flexibility make ground-based SAR suitable for monitoring in emergency cases, such as sudden landslide or volcanic activities. In this work we propose a 3D SAR imaging, for a ground-based stepped frequency
Diego Reale +3 more
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Generalized SL0 algorithm for 3D circular SAR imaging
2018 22nd International Microwave and Radar Conference (MIKON), 2018This paper aims to solve the problem of trajectory optimization for the radar-equipped aircraft. The Compressive Sensing (CS) technique is used to reduce temporal and spatial observation requirements with the preservation of Synthetic Aperture Radar (SAR) image quality. The SAR and CS techniques and the SL0 algorithm are briefly introduced.
Jedrzej Drozdowicz +2 more
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1999
The special nature of synthetic aperture radar (SAR) images as opposed to optical images requires highly specialized processing. This paper is devoted to the task of 3D surface reconstruction from multiple radar images. We discuss SAR-specific modifications of well known algorithms (stereo, shape-from-shading), as well as new algorithms incorporating ...
Regine Bolter, Axel Pinz
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The special nature of synthetic aperture radar (SAR) images as opposed to optical images requires highly specialized processing. This paper is devoted to the task of 3D surface reconstruction from multiple radar images. We discuss SAR-specific modifications of well known algorithms (stereo, shape-from-shading), as well as new algorithms incorporating ...
Regine Bolter, Axel Pinz
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SAR 3D scene reconstruction using Fourier imaging techniques
IET Seminar on High Resolution Imaging and Target Classification, 2006Synthetic aperture radar (SAR) images are conventionally collected from platforms following a straight and level flight path. The resulting Fourier domain data exist on a 2D plane which is projected onto the ground plane for imaging, producing a 2D image of the target scene.
G. Halcrow, B. Mulgrew
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3D ISAR/SAR imaging using multichannel real data
2016 IEEE Radar Conference (RadarConf), 2016Three-dimensional (3D) target reconstruction provides a more specific description of target features, which would be beneficial for the classification process. In this paper a 3D imaging technique of non-cooperative target acquired by airborne radar system is presented.
fontana, anna +3 more
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Curvilinear SAR 3D imaging by orthogonal matching pursuit
2019 6th Asia-Pacific Conference on Synthetic Aperture Radar (APSAR), 2019Curvilinear Synthetic Aperture Radar (CLSAR) has very high research value owing to realizing three-dimensional imaging through radar curvilinear flight in azimuth-altitude plane. In this paper, the principle of three-dimensional (3D) imaging based on curvilinear SAR is analyzed, and the signal model of curvilinear SAR imaging is established. Due to the
Weixing Yang, Daiyin Zhu
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Sector interpolation for 3D SAR imaging with baseline diversity data
2007 International Waveform Diversity and Design Conference, 2007SAR tomography is an emerging technique which can be used to derive full 3D SAR images of the observed areas. It is based on the Fourier elevation focusing of the signal acquired by means of baseline diversity. Unfortunately, the spatial baseline distribution is typically non-uniform, resulting in an unsatisfactory image quality.
LOMBARDINI, FABRIZIO +2 more
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