| 多层介质中路面雷达电磁波传播数值模拟 |
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| 引用本文： | 钟燕辉,张蓓,王复明.多层介质中路面雷达电磁波传播数值模拟[J].大连理工大学学报,2006,46(5):725-729. |
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| 作者姓名： | 钟燕辉 张蓓 王复明 |
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| 作者单位： | 大连理工大学,土木水利学院,辽宁,大连,116024;郑州大学,环境与水利学院,河南,郑州,450002;郑州大学,环境与水利学院,河南,郑州,450002;重庆大学,资源与环境科学学院,重庆,400044;郑州大学,环境与水利学院,河南,郑州,450002 |
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| 摘 要： | 针对高效、快速、连续、无损的路面雷达应用技术存在的问题，研究了路面雷达电磁波在多层介质中的传播规律，基于电磁波理论的基本原理，从Maxwell方程着手，建立了雷达电磁波在路面结构体系中的传播模型，该模型考虑了介质介电常数虚部的贡献，理论上更加严谨，并更接近于道路工程实际，应用该模型，模拟合成了多层路面结构体系中雷达电磁波的反射信号，将其与实测信号对比，验证了所建立模拟方法的正确性和适用性。
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| 关 键 词： | 路面雷达(GPR) 电磁波 传播模型 介电常数 路面结构 |
| 文章编号： | 1000-8608（2006）05-0725-05 |
| 收稿时间： | 2005-03-19 |
| 修稿时间： | 2005-03-192006-08-20 |
Numerical simulation of ground penetrating radar wave propagation in multi-layered medium |
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| ZHONG Yan-hui,ZHANG Bei,WANG Fu-ming.Numerical simulation of ground penetrating radar wave propagation in multi-layered medium[J].Journal of Dalian University of Technology,2006,46(5):725-729. |
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| Authors: | ZHONG Yan-hui ZHANG Bei WANG Fu-ming |
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| Institution: | 1. School of Civil and Hydraul. Eng. , Dalian Univ. of Technol., Dalian 116024, China; 2. School of Environ. and Water Conserv. Eng., Zhengzhou Univ., Zhengzhou 450002, China; 3. College of Resour. and Environ. Sci., Chongqing Univ., Chongqing 400044, China |
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| Abstract: | The ground penetrating radar(GPR) is an effective,speedy,continuous and non-destructive testing equipment.In order to solve the problems of GPR-applied technology,the characteristics of GPR electromagnetic wave propagation in multi-layered medium is studied,and the forward model of GPR electromagnetic wave propagation in pavement structures is developed based on Maxwell equation in electromagnetic theory.This forward model is more precise in theory and more close to the pavement engineering condition since the imaginary part of dielectric constant is taken into account.Applying this forward model,the reflected signals of GPR wave propagation in multi-layered pavement structure system is simulated,thus the correctness and the flexibility of the modeling method presented are verified by comparing simulated signals with practical signals. |
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| Keywords: | ground penetrating radar(GPR) electromagnetic wave forward model dielectric constant pavement structure |
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