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A Novel 3D Imaging Method of FMCW MIMO-SAR
2018 China International SAR Symposium (CISS), 2018Short 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 +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), 2004A 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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2D and 3D convolutional and correlation SAR imaging
Algorithms for Synthetic Aperture Radar Imagery XXVII, 2020Synthetic 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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Mono- and multistatic polarimetric sparse aperture 3D SAR imaging
SPIE Proceedings, 2008ABSTRACT SAR imaging at low center frequencies (UHF and L-band) offers advantages over imaging at more conventional (X-band) frequencies, including foliage penetration for target detection and scene segmentation based on polarimetric coherency. However, bandwidths typically available at these center frequencies are small, affording poor resolution.
Stuart DeGraaf +2 more
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Computational SAR ADC for a 3D CMOS image sensor
10th IEEE International NEWCAS Conference, 2012The architecture and simulation of a Computational SAR ADC (C-SAR) dedicated to the processing of image descriptors for a 3D CMOS image sensor are reported here. The differential charge sharing architecture enables to A/D convert the convolution of multiple binary weighted pixels signals on multi-scale kernels.
Arnaud Verdant +3 more
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3D image autofocus for millimeter-wave forward-looking SAR
Passive and Active Millimeter-Wave Imaging XXIV, 2021The U.S. Army Combat Capabilities Development Command (DEVCOM) Army Research Laboratory (ARL) has been investigating the capability of using 3-D millimeter-wave synthetic aperture radar (SAR) technology to provide navigation for aircraft through terrain and obstacles in a degraded visual environment (DVE). One of the key challenges associated with this
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Generating 3d Point Clouds from a Single SAR Image Using 3D Reconstruction Network
IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium, 2019Obtaining the three-dimensional data of the target is very useful for the interpretation and application of the SAR target. This paper proposes a deep learning framework to recover the three-dimensional structure of the target from a single SAR image, which is expressed in the form of 3D point cloud. Due to the small data set of SAR images, the network
Lingxiao Peng +3 more
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3D Imaging for 77 GHz MIMO-SAR
2021 CIE International Conference on Radar (Radar), 2021Tongkai Xu +5 more
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Phase-Enhanced" 3D Snapshot ISAR Imaging and Interferometric SAR"
2009Abstract : Previously, a novel formulation for the generation of three-dimensional (3D) inverse synthetic aperture radar (ISAR) images based on recent developments in high resolution spectral estimation theory was presented. Because this technique requires only "snapshots" of data, where a "snapshot" is defined as a block of Nyquist sampled frequency ...
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Integrative oncology: Addressing the global challenges of cancer prevention and treatment
Ca-A Cancer Journal for Clinicians, 2022Jun J Mao,, Msce +2 more
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