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Finite difference time domain method forward simulation of complex geoelectricity ground penetrating radar model

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Abstract

The ground penetrating radar (GPR) forward simulation all aims at the singular and regular models, such as sandwich model, round cavity, square cavity, and so on, which are comparably simple. But as to the forward of curl interface underground or “v” figure complex model, it is difficult to realize. So it is important to forward the complex geoelectricity model. This paper takes two Maxwell’s vorticity equations as departure point, makes use of the principles of Yee’s space grid model theory and the basic principle finite difference time domain method, and deduces a GPR forward system of equation of two dimensional spaces. The Mur super absorbed boundary condition is adopted to solve the super strong reflection on the interceptive boundary when there is the forward simulation. And a self-made program is used to process forward simulation to two typical geoelectricity model.

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Authors and Affiliations

  1. School of Info-physics and Geomatics Engineering, Central South University, 410083, Changsha, China

    Dai Qian-wei PhD (Associate professor), Feng De-shan & He Ji-shan

Authors
  1. Dai Qian-wei PhD
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  2. Feng De-shan
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  3. He Ji-shan
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Correspondence to Dai Qian-wei PhD.

Additional information

Foundation item: Project (50099620) supported by the National Natural Science Foundation of China

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Dai, Qw., Feng, Ds. & He, Js. Finite difference time domain method forward simulation of complex geoelectricity ground penetrating radar model. J Cent. South Univ. Technol. 12, 478–482 (2005). https://doi.org/10.1007/s11771-005-0186-7

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  • DOI: https://doi.org/10.1007/s11771-005-0186-7

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