探地雷达频率域2.5维正演

戴世坤; 欧阳振崇; 周印明; 张钱江; 李昆; 赵东东; 陈轻蕊; 凌嘉宣

doi:10.11999/JEIT190988

探地雷达频率域2.5维正演

doi: 10.11999/JEIT190988

戴世坤^{1, 2},
欧阳振崇^{1, 2, ,},
周印明³,
张钱江⁴,
李昆^{1, 2},
赵东东^{1, 2},
陈轻蕊^{1, 2},
凌嘉宣^{1, 2}

1.
中南大学地球科学与信息物理学院长沙 410083
2.
中南大学有色金属成矿预测与地质环境监测教育部重点实验室长沙 410083
3.
东方地球物理公司综合物化探处涿州 072751
4.
桂林理工大学地球科学学院桂林 541006

基金项目: 国家重点研发计划(2018YFC0603602)，国家自然科学基金(41574127)，中南大学研究生自主探索创新项目(2018zzts707, 2018zzts200, 2018zzts203)

详细信息

作者简介:
戴世坤：男，1964年生，教授，主要研究方向为重、磁、电、地震2维3维高效、高精度数值模拟与反演成像理论、方法和技术研究等

欧阳振崇：男，1995年生，硕士生，研究方向为频率域雷达2.5维3维高效、高精度数值模拟与反演成像研究

通讯作者:
欧阳振崇　oyzc_wy@163.com

中图分类号: TN959
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- 被引次数: 0
出版历程
- 收稿日期: 2019-12-11
- 修回日期: 2020-08-08
- 网络出版日期: 2020-08-21
- 刊出日期: 2021-01-15

Frequency Domain 2.5D GPR Forward Modeling

Shikun DAI^{1, 2},
Zhenchong OUYANG^{1, 2
, ,},
Yinming ZHOU³,
Qianjiang ZHANG⁴,
Kun LI^{1, 2},
Dongdong ZHAO^{1, 2},
Qingrui CHEN^{1, 2},
Jiaxuan LING^{1, 2}

1.
School of Geosciences and Info-physics, Central South University, Changsha 410083, China
2.
Key Laboratory of Metallogenic Prediction of Nonferrous Metals and Geological Environment Monitoring of Ministry of Education, Central South University, Changsha 410083, China
3.
Department of Non-seismic Exploration, Bureau of Geophysical Prospecting, Zhuozhou 072751, China
4.
School of Earth Science of Guilin University of Technology, Guilin 541006, China

Funds: The National Key Research and Development Project (2018YFC0603602), The National Natural Science Foundation of China (41574127), The Project for the Independent Exploration of Graduate Students at Central South University (2018zzts707, 2018zzts200, 2018zzts203)

摘要

摘要:
该文从频率域电磁法满足的控制方程出发，采用有限单元法实现了频率域2.5维探地雷达(GPR)正演模拟。重点分析了波数域电磁场谱随相对介电常数和收发距变化的规律，探讨了2.5维GPR正演模拟的波数选取问题；基于Open MP并行算法与串行算法的计算效率对比，表明频率域2.5维GPR数值模拟方法具有高效率、高精度和高度并行性的特点，为雷达正演提供重要理论参考依据和技术支撑，是GPR全波形反演的重要基础。
- 探地雷达 /
- 正演 /
- 2.5维 /
- 频率域 /
- 波数选取 /
- Open MP /
- 并行
Abstract:
Based on the governing equations satisfied by the electromagnetic method of the frequency domain, the finite element method is used to realize the forward simulation of 2.5-Dimensional a (2.5D) Ground Penetrating Radar (GPR) in the frequency domain. The law of the electromagnetic field spectrum in the wavenumber domain with the relative permittivity and the transmission and reception distance is analyzed in detail. The selection of the wave number in the 2.5D GPR forward modeling simulation is discussed. Based on the comparison of the computational efficiency of the Open MP parallel algorithm and the serial algorithm, the results show that the 2.5D GPR numerical simulation method in the frequency domain has the characteristics of high efficiency, high precision, and high parallelism. It provides important theoretical reference and technical support for radar forward modeling, and provides an important foundation for GPR full waveform inversion.
- Ground Penetrating Radar (GPR) /
- Forward modeling /
- 2.5-Dimensional (2.5D) /
- Frequency domain /
- Wave number selection /
- Open MP /
- Parallel

HTML全文

图 1 d_x=0.1 m处不同相对介电常数的电磁场谱随波数变化特征

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图 2 d_x=0.5 m处不同相对介电常数电磁场谱随波数变化特征

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图 3 d_x=1 m处不同相对介电常数电磁场谱随波数变化特征

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图 4 d_x=5 m处不同相对介电常数电磁场谱随波数变化特征

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图 5 d_x=10 m处不同相对介电常数电磁场谱随波数变化特征

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图 6 主剖面电磁场数值解与解析解对比图

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图 7 主剖面电磁场其他算法数值解与解析解对比图

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图 8 主剖面半空间电磁场数值解与解析解的对比图

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图 9 复杂模型示意图

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图 10 主剖面电磁场分量实部和虚部

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表 1 整个程序OpenMP并行不同线程计算效率

	1线程	2线程	4线程	8线程	16线程	20线程
CPU负载率(%)	78.7	9.2	19.2	37.7	72.6	90.3
占用内存(GB)	1.32	1.95	2.86	5.84	10.16	13.26
运行时间(s)	242.887	359.917	190.912	106.645	79.925	86.375
加速比(SP)	无	0.673	1.269	2.271	3.030	2.812

下载: 导出CSV

参考文献(16)

屈乐乐, 方广有, 杨天虹. 压缩感知理论在频率步进探地雷达偏移成像中的应用[J]. 电子与信息学报, 2011, 33(1): 21–26. doi: 10.3724/SP.J.1146.2009.01528

QU Lele, FANG Guangyou, and YANG Tianhong. The application of compressed sensing to stepped-frequency ground penetrating radar migration imaging[J]. Journal of Electronics &Information Technology, 2011, 33(1): 21–26. doi: 10.3724/SP.J.1146.2009.01528

郑适, 张安学, 岳思橙, 等. 基于改进粒子群优化的探地雷达波形反演算法[J]. 电子与信息学报, 2014, 36(11): 2717–2722. doi: 10.3724/SP.J.1146.2013.01979

ZHENG Shi, ZHANG Anxue, YUE Sicheng, et al. Ground penetrating radar inversion algorithm based on improved particle swarm optimization[J]. Journal of Electronics &Information Technology, 2014, 36(11): 2717–2722. doi: 10.3724/SP.J.1146.2013.01979

YEE K. Numerical solution of initial boundary value problems involving Maxwell’s Equations in isotropic media[J]. IEEE Transactions on Antennas and Propagation, 1996, 14(3): 302–307.

BERGMANN T, ROBERTSSON J O A, and HOLLIGER K. Finite-difference modeling of electromagnetic wave propagation in dispersive and attenuating media[J]. Geophysics, 1998, 63(3): 856–867. doi: 10.1190/1.1444396

IRVING J and KNIGHT R. Numerical modeling of ground-penetrating radar in 2-D using MATLAB[J]. Computers & Geosciences, 2006, 32(9): 1247–1258. doi: 10.1016/j.cageo.2005.11.006

刘四新, 曾昭发. 频散介质中地质雷达波传播的数值模拟[J]. 地球物理学报, 2007, 50(1): 320–326. doi: 10.3321/j.issn:0001-5733.2007.01.040

LIU Sixin and ZENG Zhaofa. Numerical simulation for Ground Penetrating Radar wave propagation in the dispersive medium[J]. Chinese Journal of Geophysics, 2007, 50(1): 320–326. doi: 10.3321/j.issn:0001-5733.2007.01.040

冯德山, 杨良勇, 王珣. 探地雷达FDTD数值模拟中不分裂卷积完全匹配层对倏逝波的吸收效果研究[J]. 地球物理学报, 2016, 59(12): 4733–4746. doi: 10.6038/cjg20161232

FENG Deshan, YANG Liangyong, and WANG Xun. The unsplit convolutional perfectly matched layer absorption performance analysis of evanescent wave in GPR FDTD forward modeling[J]. Chinese Journal of Geophysics, 2016, 59(12): 4733–4746. doi: 10.6038/cjg20161232

底青云, 王妙月. 雷达波有限元仿真模拟[J]. 地球物理学报, 1999, 42(6): 818–825. doi: 10.3321/j.issn:0001-5733.1999.06.012

DI Qingyun and WANG Miaoyue. 2D finite element modeling for radar wave[J]. Chinese Journal of Geophysics, 1999, 42(6): 818–825. doi: 10.3321/j.issn:0001-5733.1999.06.012

杜华坤, 冯德山, 汤井田. 基于Delaunay三角形的非结构化有限元GPR正演[J]. 中南大学学报: 自然科学版, 2015, 46(4): 1326–1334. doi: 10.11817/j.issn.1672-7207.2015.04.022

DU Huakun, FENG Deshan, and TANG Jingtian. GPR simulation by finite element method of unstructured grid based on Delaunay triangulation[J]. Journal of Central South University:Science and Technology, 2015, 46(4): 1326–1334. doi: 10.11817/j.issn.1672-7207.2015.04.022

石明, 冯德山, 王洪华, 等. 各向异性介质GPR非结构化网格有限元正演[J]. 中南大学学报: 自然科学版, 2016, 47(5): 1660–1667. doi: 10.11817/j.issn.1672-7207.2016.05.027

SHI Ming, FENG Deshan, WANG Honghua, et al. GPR numerical simulation for anisotropic medium by using finite element method based on unstructured meshes[J]. Journal of Central South University:Science and Technology, 2016, 47(5): 1660–1667. doi: 10.11817/j.issn.1672-7207.2016.05.027

王洪华, 吕玉增, 王敏玲, 等. 基于PML边界条件的二阶电磁波动方程GPR时域有限元模拟[J]. 地球物理学报, 2019, 62(5): 1929–1941. doi: 10.6038/cjg2019M0610

WANG Honghua, LÜ Yuzeng, WANG Minling, et al. A perfectly matched layer for second order electromagnetic wave simulation of GPR by finite element time domain method[J]. Chinese Journal of Geophysics, 2019, 62(5): 1929–1941. doi: 10.6038/cjg2019M0610

孟旭, 刘四新, 傅磊, 等. 基于对数目标函数的跨孔雷达频域波形反演[J]. 地球物理学报, 2016, 59(5): 1875–1887. doi: 10.6038/cjg20160530

MENG Xu, LIU Sixin, FU Lei, et al. Frequency domain waveform inversion of cross-hole GPR data based on a logarithmic objective function[J]. Chinese Journal of Geophysics, 2016, 59(5): 1875–1887. doi: 10.6038/cjg20160530

戴世坤, 王顺国, 张钱江, 等. 频率域可控源电磁法2.5D正反演[J]. 中国有色金属学报, 2013, 23(9): 2513–2523. doi: 10.19476/j.ysxb.1004.0609.2013.09.022

DAI Shikun, WANG Shunguo, ZHANG Qianjiang, et al. 2.5D forward and inversion of CSEM in frequency domain[J]. The Chinese Journal of Nonferrous Metals, 2013, 23(9): 2513–2523. doi: 10.19476/j.ysxb.1004.0609.2013.09.022

薛东川, 戴世坤. 频率域2.5维电磁测深有限元模拟中的吸收边界条件[J]. 中国石油大学学报: 自然科学版, 2008, 32(6): 57–61. doi: 10.3321/j.issn:1673-5005.2008.06.011

XUE Dongchuan and DAI Shikun. Absorbing boundary condition for simulating 2.5-D electromagnetic sounding in frequency domain by finite element method[J]. Journal of China University of Petroleum:Edition of Natural Science, 2008, 32(6): 57–61. doi: 10.3321/j.issn:1673-5005.2008.06.011

胡涂. 探地雷达2.5D频率域数值模拟[D]. [硕士论文], 中南大学, 2014.

HU Tu. Frequency domain 2.5D GPR Forward Modeling[D]. [Master dissertation], Central South University, 2014.

SCHENK O and GÄRTNER K. Solving unsymmetric sparse systems of linear equations with PARDISO[C]. International Conference on Computational Science, The Netherlands, 2002. doi: 10.1007/3-540-46080-2_37.

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