Volume 10 Issue 5
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GUO Zhongyi, WANG Yunlai, WANG Yanzhe, et al. Research advances in vortex radar imaging technology[J]. Journal of Radars, 2021, 10(5): 665–679. doi: 10.12000/JR21075
Citation: GUO Zhongyi, WANG Yunlai, WANG Yanzhe, et al. Research advances in vortex radar imaging technology[J]. Journal of Radars, 2021, 10(5): 665–679. doi: 10.12000/JR21075
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Research Advances in Vortex Radar Imaging Technology

doi: 10.12000/JR21075

  • School of Computer and Information, Hefei University of Technology, Hefei 230009, China

Funds:  The National Natural Science Foundation of China (61775050), Fundamental Research Funds for the Central Universities of China (PA2019GDZC0098)
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  • Corresponding author: GUO Zhongyi, guozhongyi@hfut.edu.cn
  • Received Date: 2021-06-07
  • Rev Recd Date: 2021-08-02
    • Available Online: 2021-09-01
  • Publish Date: 2021-09-01
    Abstract
  • Vortex electromagnetic wave carries the Orbital Angular Momentum (OAM), and thus has a spiral wavefront structure, which contains the azimuthal information of the target in the echo signal when performing radar imaging compared with planar waves. Hence, this kind of electromagnetic wave shows great potential for various applications in the field of radar detection and imaging, and it is expected to become the development direction of new-system radars. This paper describes in detail the research progress in vortex radar imaging technology in recent years. First, the characteristics of the vortex electromagnetic wave and the principles of imaging using a uniform circular array are introduced. Then the paper reviews the developmental history and research status of vortex radar imaging technology, according to three research directions: vortex radar imaging model, vortex radar gaze imaging algorithm, and vortex radar motion imaging. Finally, the prospects for the development of vortex radar imaging have been presented, along with the key scientific issues and trends for the future developments of vortex radar imaging.

     

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