線形逆散乱解析による多孔質弾性体中の不均質部の形状再構成 Shape reconstruction of scatterers in poroelastic media using linearized inverse scattering analysis

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The Linearized Inverse Scattering Analysis using Born approximation is applied to the Biot's Poroelastic model for the visualization of scatterers in porous media. Spatial and frequency distribution of the scattering amplitude is used for the shape reconstruction of a scatterer in which solid frame and/or pore fluid properties are different from surrounding media. The inversion method is based on the field integral expression of the scattered field, its linearization by Born approximation, and a direct inversion method by using the Inverse Fourier Transform. In this paper, theoretical background and numerical formulations of the method are described, and some examples of the reconstructed form of scatterers using simulated scattered field are shown. The examples show the applicability of the inversion method to the fluid filled porous material. The limited aperture problem is also discussed using the numerical results. It is shown that the reconstruction of scatterer geometry is still available with some degree of the lack of information.

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  • 物理探査 = BUTSURI-TANSA Geophysical Exploration  

    物理探査 = BUTSURI-TANSA Geophysical Exploration 58(6), 653-664, 2005-12-01 

    The Society of Exploration Geophysicists of Japan

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各種コード

  • NII論文ID(NAID)
    10018082457
  • NII書誌ID(NCID)
    AN10028069
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    09127984
  • NDL 記事登録ID
    7915820
  • NDL 雑誌分類
    ZM41(科学技術--地球科学)
  • NDL 請求記号
    Z15-66
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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