简介概要

Borehole-GPR numerical simulation of full wave field based on convolutional perfect matched layer boundary

来源期刊:中南大学学报(英文版)2013年第3期

论文作者:ZHU Zi-qiang(朱自强) PENG Ling-xing(彭凌星) LU guang-yin(鲁光银) MI Shi-wen(密士文)

文章页码:764 - 769

Key words:borehole-GPR; numerical simulation; convolutional perfect match layer; finite-difference time-domain method

Abstract: The absorbing boundary is the key in numerical simulation of borehole radar. Perfect match layer (PML) was chosen as the absorbing boundary in numerical simulation of GPR. But CPML (convolutional perfect match layer) approach that we have chosen has the advantage of being media independent. Beginning with the Maxwell equations in a two-dimensional structure, numerical formulas of finite-difference time-domain (FDTD) method with CPML boundary condition for transverse electric (TE) or transverse magnetic (TM) wave are presented in details. Also, there are three models for borehole-GPR simulation. By analyzing the simulation results, the features of targets in GPR are obtained, which can provide a better interpretation of real radar data. The results show that CPML is well suited for the simulation of borehole-GPR.

详情信息展示

Borehole-GPR numerical simulation of full wave field based on convolutional perfect matched layer boundary

ZHU Zi-qiang(朱自强), PENG Ling-xing(彭凌星), LU guang-yin(鲁光银), MI Shi-wen(密士文)

(School of Geosciences and Info-Physics, Central South University, Changsha 410083, China)

Abstract:The absorbing boundary is the key in numerical simulation of borehole radar. Perfect match layer (PML) was chosen as the absorbing boundary in numerical simulation of GPR. But CPML (convolutional perfect match layer) approach that we have chosen has the advantage of being media independent. Beginning with the Maxwell equations in a two-dimensional structure, numerical formulas of finite-difference time-domain (FDTD) method with CPML boundary condition for transverse electric (TE) or transverse magnetic (TM) wave are presented in details. Also, there are three models for borehole-GPR simulation. By analyzing the simulation results, the features of targets in GPR are obtained, which can provide a better interpretation of real radar data. The results show that CPML is well suited for the simulation of borehole-GPR.

Key words:borehole-GPR; numerical simulation; convolutional perfect match layer; finite-difference time-domain method

<上一页 1 下一页 >

有色金属在线官网  |   会议  |   在线投稿  |   购买纸书  |   科技图书馆

中南大学出版社 技术支持 版权声明   电话:0731-88830515 88830516   传真:0731-88710482   Email:administrator@cnnmol.com

互联网出版许可证:(署)网出证(京)字第342号   京ICP备17050991号-6      京公网安备11010802042557号