Results 211 to 220 of about 13,439 (259)

2D and 3D convolutional and correlation SAR imaging

Algorithms for Synthetic Aperture Radar Imagery XXVII, 2020
Synthetic Aperture Radar (SAR) images and volumes may be produced through multiple antenna or multiple pass scenarios. SAR imaging runs a gamut of techniques from convolution of the recieved data with the modeled SAR aperture impulse response to correlation of the spherical wave function with the recieved wave.
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A novel 3D imaging method based on orthogonal-track SAR

2016 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2016
A novel method of three-dimensional (3D) imaging based on orthogonal-track synthetic aperture radar (SAR), is proposed in this paper. In the scheme, the SAR sensor moves along two orthogonal tracks successively and two SAR images are obtained. Then we extract the spacial information from the two-dimensional (2D) SAR images to reconstruct the 3D ...
Ji Guo, Yuhao Wang, Kaizhi Wang, Xingzhao Liu   +3 more
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A First Experiment of 3D Imaging with a Ground based Parasitic SAR

2006 IEEE International Symposium on Geoscience and Remote Sensing, 2006
The present paper provides the first example of 3D imaging using the ground based parasitic SAR instrument developed in the past years at Politecnico di Milano.
Carlo Colesanti, Daniele Perissin
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A Novel 3D Imaging Method of FMCW MIMO-SAR

2018 China International SAR Symposium (CISS), 2018
Short range three-dimensional imaging radar has wide application prospects, but high resolution high resolution requires a large number of antenna elements in traditional planar array 3D imaging radars. In this paper, In this paper, the Frequency Modulated Continuous Wave (FMCW) Multiple Input Multiple Output (MIMO) Synthetic Aperture Radar (SAR) with ...
Lin Tang, Hongfeng Meng, Xi Chen, Jing Zhang, Liangqing Lv, Kuanyao Liu   +5 more
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A tomographic SAR image formation based on 3D target

Fifth World Congress on Intelligent Control and Automation (IEEE Cat. No.04EX788), 2004
A method is developed for the 3D image reconstruction of synthetic aperture radar based on a tomographic model. In this model, the demodulated radar return signal could be seen as a set of sampled 3D Fourier transform of the reflectivity density of the target, and a 2D image of projection corresponding to reflectivity in the 3D scene can be ...
null Bin Sun, null Kui Jia
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Curvilinear SAR 3D imaging by orthogonal matching pursuit

2019 6th Asia-Pacific Conference on Synthetic Aperture Radar (APSAR), 2019
Curvilinear 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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Generalized SL0 algorithm for 3D circular SAR imaging

2018 22nd International Microwave and Radar Conference (MIKON), 2018
This 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, Maciej Wielgo, Marcin K. Baczyk   +2 more
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Application of 3D-SAR nearfield imaging algorithms to GPR data

2007 IEEE International Geoscience and Remote Sensing Symposium, 2007
This contribution addresses the utilization of near field 3D-SAR imaging algorithms applied to radar data from an ultra wideband (UWB) ground penetrating radar (GPR) system. The measured data were collected at the test field of the multi sensor mine signature (MsMs) group at the European Joint Research Centre (JRC) in Ispra/IT.
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Compressive sensing based 3D SAR imaging with multi-PRF baselines

2014 IEEE Geoscience and Remote Sensing Symposium, 2014
In this paper, we fundamentally re-examine 3D SAR imaging and propose a CS-based approach aiming to reduce the data collection cost and increase the elevation resolution. In particular, our approach significantly reduces the number of baselines required to acquire the scene of interest, as well as the pulsing rate in each baseline.
Dehong Liu, Petros T. Boufounos
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Imaging Geometry Analysis of 3D SAR using Linear Array Antennas

IGARSS 2008 - 2008 IEEE International Geoscience and Remote Sensing Symposium, 2008
Linear array antennas SAR has a resolving capability in the elevation direction, and can get the 3D image of the target. In this paper, we derive the signal model of 3D SAR using a linear array antenna, and get the 3D resolutions and 3D point spread function of array antenna SAR, at the same time the sampling space of array antennas is given.
Yanping Wang, Bin Wang, Wen Hong, Lei Du, Yirong Wu   +4 more
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