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Hong Wen, Wang Yanping, Lin Yun, Tan Weixian, Wu Yirong. Research Progress on Three-dimensional SAR Imaging Techniques[J]. Journal of Radars, 2018, 7(6): 633-654. doi: 10.12000/JR18109
Citation: Hong Wen, Wang Yanping, Lin Yun, Tan Weixian, Wu Yirong. Research Progress on Three-dimensional SAR Imaging Techniques[J]. Journal of Radars, 2018, 7(6): 633-654. doi: 10.12000/JR18109
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Research Progress on Three-dimensional SAR Imaging Techniques

DOI: 10.12000/JR18109

  • Science and Technology on Microwave Imaging Laboratory, Beijing 100190, China

  • Key Laboratory of Technology in Geo-Spatial Information Processing and Application System, Beijing 100190, China

  • Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China

Funds:  The National Natural Science Foundation of China (61431018, 61860206013, 61571421)
  • Received Date: 2018-12-05
  • Rev Recd Date: 2018-12-21
  • Publish Date: 2018-12-28
    Abstract
  • Conventional Synthetic Aperture Radar (SAR) moves along a straight line and forms a linear synthetic apertures. It can only obtain the two-dimensional (2-D) image of illuminated scene that is the projection of the three-dimensional (3-D) real scene onto a slant plane. The slant plane 2-D SAR image, however, suffers from layover and foreshortening effects. 3-D SAR imaging enables 3-D resolving capability by extending the acquisition of frequency information from 2-D to 3-D. It can obtain the 3-D distribution of scattering centers; therefore, it solves the geometric deformation problems of layover and foreshortening. 3-D SAR imaging has become a trending topic in research on SAR techniques worldwide. In this paper, we first introduced the concept of 3-D SAR imaging and several typical 3-D SAR imaging modes. Furthermore, it provides a discussion on research progress at home and abroad, particularly focusing on the progress of our research team. Finally, future research prospects are presented.

     

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