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      Research Progress on Three-dimensional SAR Imaging Techniques

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          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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          Author and article information

          Journal
          Journal of Radars
          Chinese Academy of Sciences
          01 December 2018
          : 7
          : 6
          : 633-654
          Affiliations
          [1 ] (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)
          Article
          dcdbcb0e319046d0897bcfa39b5c8e11
          10.12000/JR18109

          This work is licensed under a Creative Commons Attribution 4.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

          Categories
          Technology (General)
          T1-995

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