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JI Yifei, DONG Zhen, ZHANG Yongsheng, et al. Research overview on ionospheric probing based on spaceborne synthetic aperture radars[J]. Journal of Radars, in press. doi: 10.12000/JR24172
Citation: JI Yifei, DONG Zhen, ZHANG Yongsheng, et al. Research overview on ionospheric probing based on spaceborne synthetic aperture radars[J]. Journal of Radars, in press. doi: 10.12000/JR24172
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Research Overview on Ionospheric Probing Based on Spaceborne Synthetic Aperture Radars

DOI: 10.12000/JR24172
  • 1.

    College of Electronic Science and Technology, National University of Defense Technology, Changsha 410073, China

  • 2.

    College of Electronic Information, Wuhan University, Wuhan 430072, China

  • 3.

    School of Earth Science and Engineering, Southwest Jiaotong University, Chengdu 611756, China

  • 4.

    Qian Xuesen Laboratory of Space Technology, China Academy of Space Technology, Beijing 100094, China

Funds:  The National Natural Science Foundation of China (62101568, 62371460, 62471474, 42074225), The Hunan Provincial Natural Science Foundation (2024JJ4046), The National Postdoctoral Program of Innovative Talents (BX20230473), The Science and Technology Innovation Program of Hunan Province (2024RC3122), The Scientific Research Program of the National University of Defense Technology (ZK21-06)
More Information
  • Corresponding author: DONG Zhen, dongzhen@vip.sina.com
  • Received Date: 2024-08-21
  • Rev Recd Date: 2024-09-19
    • Available Online: 2024-09-25
    Abstract
  • The ionosphere can distort received signals, degrade imaging quality, and decrease interferometric and polarimetric accuracies of spaceborne Synthetic Aperture Radars (SAR). The low-frequency systems operating at L-band and P-band are very susceptible to such problems. From another viewpoint, low-frequency spaceborne SARs can capture ionospheric structures with different spatial scales over the observed scope, and their echo and image data have sufficient ionospheric information, offering great probability for high-precision and high-resolution ionospheric probing. The research progress of ionospheric probing based on spaceborne SARs is reviewed in this paper. The technological system of this field is summarized from three aspects: Mapping of background ionospheric total electron content, tomography of ionospheric electron density, and probing of ionospheric irregularities. The potential of the low-frequency spaceborne SARs in mapping ionospheric local refined structures and global tendency is emphasized, and the future development direction is prospected.

     

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