频散介质探地雷达正演与高速公路实测资料解释
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Release time:2020-08-08 Journal:中国有色金属学报 Place of Publication:中国 Key Words:探地雷达；频散介质；有限单元法；正演；高速公路；圆管涵 Abstract:基于Maxwell方程组,得 到满足Debye关系的频散介质探地雷达有限元波动方程,推导有限单元法的离散格式,并编制正演模拟MATLAB程序.选取一典型地电模型,分别对考虑频 散与不考虑频散,频散介质中同一模型不同频率天线的雷达探测结果进行分析.结果表明:雷达波在频散介质中传播时,具有波形严重畸变,能量迅速衰减的特性, 如果不考虑介质对波吸收衰减的探地雷达正演,其结果与实测的雷达波形存在较大的偏差.并把该结论应用到广东省某高速公路的圆管涵实际资料解释中,有效地解 答了实测资料解释中遇到的问题,并对GPR工程实测过程中天线频率的选取提出了有益建议. Co-author:柳建新, 谢源, 钟文胜, 杨炳坤 First Author:赵超 Indexed by:Applied Research Correspondence Author:冯德山 Document Code:DOI：CNKI:SUN:ZYXZ.0.2013-09-021 Discipline:地质资源与地质工程 Document Type:J Volume:23 Issue:9 Page Number:2506-2512 ISSN No.:1004-0609 Translation or Not:no CN No.:43-1238/TG Date of Publication:2013-09-23 Included Journals:EI -
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