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

计量

文章访问数:855
HTML全文浏览量:288
PDF下载量:66
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。
关键词: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.
Key words:Ground Penetrating Radar (GPR)/
Forward modeling/
2.5-Dimensional (2.5D)/
Frequency domain/
Wave number selection/
Open MP/
Parallel



PDF全文下载地址:

https://jeit.ac.cn/article/exportPdf?id=786a47e5-a4e7-4c73-9b2d-6f62aa739336