探地雷达有限元数值模拟及衰减特性探讨
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Release time:2020-08-08 DOI number:10.3969/j.issn.1001-1749.2014.02.05 Journal:物探化探计算技术 Place of Publication:中国 Key Words:探地雷达；衰减特性；有限单元法；正演模拟 Abstract:从Maxwell方程组出发,推导了带衰减项与不带衰减项的探地雷达(GPR)有限元波动方程.利用matlab平台编译了二维GPR有限元正演模拟程序.通过对典型模型例子的模拟分析,给出了GPR电磁波衰减比的概念及其计算公式,加深理解了GPR电磁波在不同介质中的传播特性.在GPR正演模拟中,必须考虑衰减项的吸收作用,得到的模拟结果更符合GPR电磁波在地下介质中的传播规律,更有助于理解和掌握地下介质中探地雷达波的传播规律,对探地雷达资料的地质解释具有更好地指导意义. Note:CSCD Co-author:冯德山 First Author:陈承申 Indexed by:Applied Research Document Code:DOI：10.3969/j.issn.1001-1749.2014.02.05 Discipline:地质资源与地质工程 Document Type:J Volume:36 Issue:2 Page Number:152-157 ISSN No.:1001-1749 Translation or Not:no CN No.:51-1242/P Date of Publication:2014-04-10 -
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