地球物理学进展 ›› 2018, Vol. 33 ›› Issue (5): 1974-1984.doi: 10.6038/pg2018BB0579

• 应用地球物理学Ⅰ(油气及金属矿产地球物理勘探) • 上一篇    下一篇

探地雷达波动方程数值模拟方法研究进展综述

王敏玲1,2(),王洪华1,2,*()   

  1. 1. 桂林理工大学,地球科学学院,桂林 541004
    2. 广西隐伏金属矿产勘查重点实验室,桂林 541004
  • 收稿日期:2017-12-14 修回日期:2018-08-12 出版日期:2018-10-20 发布日期:2019-01-11
  • 通讯作者: 王洪华 E-mail:wangml@glut.edu.cn;wanghonghua5@163.com
  • 作者简介:王敏玲,女,1988年生,湖南祁阳人,博士,讲师,主要从事地球物理成像理论及应用研究.
  • 基金资助:
    国家自然科学基金项目(41604039);国家自然科学基金项目(41604102);国家自然科学基金项目(41574078);广西自然科学基金项目(2016GXNSFBA380082);广西自然科学基金项目(2016GXNSFBA380215);广西自然科学基金项目(2015GXNSFAA139238);广西中青年教师基础能力提升项目(KY2016YB199);广西有色金属隐伏矿床勘查及材料开发协同创新中心创新团队项目(GXYSXTZX2017-Ⅱ-5)

Review of wave equation numerical simulation methods for Ground Penetrating Radar

WANG Min-ling1,2(),WANG Hong-hua1,2,*()   

  1. 1. College of Earth Sciences, Guilin University of Technology, Guilin 541004, China
    2. Guangxi Key Laboratory of Hidden Metallic Ore Deposits Exploration, Guilin 541004, China
  • Received:2017-12-14 Revised:2018-08-12 Online:2018-10-20 Published:2019-01-11
  • Contact: Hong-hua WANG E-mail:wangml@glut.edu.cn;wanghonghua5@163.com

摘要:

探地雷达(GPR)数值模拟不仅是研究电磁波在地下浅部复杂介质中传播规律的有效手段,而且是开展逆时偏移和全波形反演研究的重要基础.波动方程数值模拟结果包含了丰富的波动信息,可为研究高频电磁波的传播机理和复杂结构的解释提供更多的佐证,因而一直在GPR数值模拟领域占据主导地位.本文回顾和总结了三种波动方程数值模拟方法——时域有限差分法(FDTD)、时域有限元法(FETD)、时域伪谱法(PSTD)在GPR数值模拟方面的研究进展,比较了三种方法的优缺点,探究了三种方法在提高复杂介质结构模拟精度和计算效率方面出现的新技术.最后,对该领域的发展方向和趋势进行了分析和展望.

关键词: 探地雷达, 波动方程, 数值模拟, 研究进展

Abstract:

Numerical simulation of Ground Penetrating Radar (GPR) is not only an effective method to analyze the propagation law of electromagnetic waves in subsurface complex media, but also an important basis for carrying out reverse time migration and full waveform inversion research. The wave equation numerical simulation results contain abundant wave information, which can provide more evidence for the study of the propagation mechanism of high-frequency electromagnetic waves and the interpretation of the complex structures. Therefore, it has been the hot topics in the study of GPR numerical simulation. In this paper, we review and summarize the research progress of three wave equation numerical simulation methods, Finite Difference Time Domain (FDTD), Finite Element Time Domain (FETD), Pseudo Spectral Time Domain (PSTD) method in GPR numerical simulation. The advantages and disadvantages of the above three methods are analyzed and compared. And techniques for improving precision and calculation efficiency of complex structure are explored. Finally, the direction and trend of development in the field are analyzed and forecasted.

Key words: Ground Penetrating Radar (GPR), wave equation, numerical simulation, research progress

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