Near-field 3D SAR Imaging Techniques Using a Scanning MIMO Array
Gao Jingkun* Deng Bin Qin Yuliang Wang Hongqiang Li Xiang
(College of Electronic Science and Technology, National University of Defense Technology, Changsha 410073, China)
Guide
Abstract Near-field 3-D imaging based on a scanning array is an important application of Synthetic Aperture Radar (SAR) 3-D imaging technology for civil use. Compared with Single-Input-Single-Output (SISO) arrays, a Multi-Input-Multi-Output (MIMO) scanning system is a special imaging method characterized by high imaging quality, high array efficiency, loose requirements for antenna spacing and low cost. In this paper, two imaging regimes, namely, MIMO-planar scanning and MIMO cylindrical scanning, are described in terms of signal models, imaging algorithms, experimental systems, and imaging results. The results show the great application potential of the imaging technology in various scenarios.
Key words ： Synthetic Aperture Radar (SAR)
Multi-Input-Multi-Output (MIMO) array
Near-field imaging
3D imaging
Received: 2018-11-28;
Published: 2019-01-17
Fund: The National Natural Science Foundation of China (61871386, 61701513, 61571011)
Cite this article:
Gao Jingkun,Deng Bin,Qin Yuliang et al. Near-field 3D SAR Imaging Techniques Using a Scanning MIMO Array[J]. JOURNAL OF RADARS, 2018, 7(6): 676-684.
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2018, Vol. 7 
