Finite difference time domain method forward simulation of complex geoelectricity ground penetrating radar model
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Release time:2020-08-09 Impact Factor:1.249 DOI number:10.1007/s11771-005-0186-7 Affiliation of Author(s):中南大学地球科学与信息物理学院 Teaching and Research Group:中南大学应用地球物理系 Journal:Journal of Central South University of Technology (English Edition) Place of Publication:中国 Funded by:50099620 Key Words:ground penetrating radar; finite difference time domain method; forward simulation; ideal frequency dispersion relationship 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. Co-author:冯德山, 何继善 First Author:戴前伟 Indexed by:Applied Research Document Code:1005-9784(2005)04-0478-05 Discipline:地质资源与地质工程 Document Type:J Volume:12 Issue:4 Page Number:478~482 ISSN No.:2095-2899 Translation or Not:no CN No.:43-1516/TB Date of Publication:2005-08-15 Included Journals:SCI、EI -
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