| 路面雷达电磁波的时域有限差分法模拟 |
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| 引用本文： | 王复明,李嘉,蔡迎春.路面雷达电磁波的时域有限差分法模拟[J].郑州大学学报(工学版),2005,26(1):28-32. |
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| 作者姓名： | 王复明 李嘉 蔡迎春 |
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| 作者单位： | 1. 郑州大学环境与水利学院,河南,郑州,450002
2. 大连理工大学土木工程学院,辽宁,大连,116024 |
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| 基金项目： | 国家自然科学基金，河南省高校杰出科研创新人才工程项目 |
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| 摘 要： | 介绍了路面雷达电磁波在路面结构中传播的基本原理,结合时域有限差分法算法,分别分析一维FDTD方程、软激励源、分层介面的有效参数、吸收边界条件在应用实现模拟过程中的重要影响,并建立了空气耦合式路面雷达的正演模型.理论模拟和实际工程数值算例表明:该模型对路面雷达正演模拟是可行的,误差不超过2%.
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| 关 键 词： | 路面雷达 时域有限差分法 正演 |
| 文章编号： | 1671-6833(2005)01-0028-05 |
| 修稿时间： | 2004年9月25日 |
Finite Difference Time Domian Simulation of GPR Electromagnetic Wave |
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| WANG Fu-ming,LI Jia,CAI ying-chun.Finite Difference Time Domian Simulation of GPR Electromagnetic Wave[J].Journal of Zhengzhou University: Eng Sci,2005,26(1):28-32. |
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| Authors: | WANG Fu-ming LI Jia CAI ying-chun |
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| Abstract: | ground penetrating radar (GPR), which is a rapid, highly efficient, continuous, and nondestructive tool, has been widely used in pavement testing and evaluation in recent years. In this paper, a forward air-coupled GPR model is established. This model is based on the basic theory of FDTD by analyzing the characteristics of electromagnetic wave tromagnetic wave propagation in pavement. Moreover, the validity of this forward model is proved by the results of several simulated and practical cases. |
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| Keywords: | ground penetrating radar(GPR) finite difference time domian method(FDTD) forward model |
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