中国物理B ›› 2013, Vol. 22 ›› Issue (2): 20301-020301.doi: 10.1088/1674-1056/22/2/020301

• GENERAL • 上一篇    下一篇

Research on synthetic aperture radar imaging technology of one-dimensional layered rough surfaces

姬伟杰a, 童创明a b   

  1. a Missile Institute of Air Force Engineering University, Xi'an 713800, China;
    b State Key Laboratory of Millimeter Waves, Nanjing 210096, China
  • 收稿日期:2012-03-17 修回日期:2012-07-04 出版日期:2013-01-01 发布日期:2013-01-01
  • 基金资助:
    Project supported by the State Key Laboratory Fund of Millimeter Waves, Nanjing, China (Grant No. K201201) and the Natural Science Foundation Research Programs of Shannxi Province, China (Grant No. 2011JM8025).

Research on synthetic aperture radar imaging technology of one-dimensional layered rough surfaces

Ji Wei-Jie (姬伟杰)a, Tong Chuang-Ming (童创明)a b   

  1. a Missile Institute of Air Force Engineering University, Xi'an 713800, China;
    b State Key Laboratory of Millimeter Waves, Nanjing 210096, China
  • Received:2012-03-17 Revised:2012-07-04 Online:2013-01-01 Published:2013-01-01
  • Contact: Ji Wei-Jie E-mail:jiweijie01@163.com
  • Supported by:
    Project supported by the State Key Laboratory Fund of Millimeter Waves, Nanjing, China (Grant No. K201201) and the Natural Science Foundation Research Programs of Shannxi Province, China (Grant No. 2011JM8025).

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摘要： A quick and exact imaging method for one-dimensional layered rough surfaces is proposed in this paper to study the scattering characteristics of layered medium that exists widely in nature. The boundary integral equations of layered rough surfaces are solved by using the propagation-inside-layer expansion combining the forward and backward spectral acceleration method (PILE+FB-SA), and the back scattering data can be obtained. Then, a conventional synthetic aperture radar (SAR) imaging procedure called back projection method is used to generate two-dimensional (2D) image of the layered rough surfaces. Combining the relative dielectric permittivity of realistic soil, the random rough surfaces with Gauss spectrum are used to simulate the layered medium with rough interfaces. Since the back scattering data are computed by using the fast numerical method, this method can be used to study layered rough surfaces with any parameter, which has a great application value in the detection and remote sensing areas.

关键词: SAR imaging, layered rough surfaces, PILE+FB-SA, back projection method

Abstract: A quick and exact imaging method for one-dimensional layered rough surfaces is proposed in this paper to study the scattering characteristics of layered medium that exists widely in nature. The boundary integral equations of layered rough surfaces are solved by using the propagation-inside-layer expansion combining the forward and backward spectral acceleration method (PILE+FB-SA), and the back scattering data can be obtained. Then, a conventional synthetic aperture radar (SAR) imaging procedure called back projection method is used to generate two-dimensional (2D) image of the layered rough surfaces. Combining the relative dielectric permittivity of realistic soil, the random rough surfaces with Gauss spectrum are used to simulate the layered medium with rough interfaces. Since the back scattering data are computed by using the fast numerical method, this method can be used to study layered rough surfaces with any parameter, which has a great application value in the detection and remote sensing areas.

Key words: SAR imaging, layered rough surfaces, PILE+FB-SA, back projection method

中图分类号:  (Classical electromagnetism, Maxwell equations)

  • 03.50.De
03.65.Ge (Solutions of wave equations: bound states)