[1]方宏远,李健,钟燕辉,等.路面结构中探地雷达传播精度高效数值模型[J].郑州大学学报(工学版),2015,36(04):87-91.[doi:10.3969/ j. issn.1671 -6833.2015.04.020]
　FANG Hong-yuan,Ll Jian,ZHONG Yan-hui,et al.The Precise and Efficient Numerical Model for Ground PenetratingRadar ( GPR) Wave Propagation in Pavement Structure[J].Journal of Zhengzhou University (Engineering Science),2015,36(04):87-91.[doi:10.3969/ j. issn.1671 -6833.2015.04.020]
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路面结构中探地雷达传播精度高效数值模型()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
36
期数:
2015年04期
页码:
87-91
栏目:
出版日期:
2015-08-31

文章信息/Info

Title:
The Precise and Efficient Numerical Model for Ground PenetratingRadar ( GPR) Wave Propagation in Pavement Structure
作者:
方宏远1; 2; 李健1; 钟燕辉1; 2; 王复明1; 2
1.郑州大学水利与环境学院,河南郑州450001; 2.水利与交通基础设施安全防护河南省协同创新中心,河南郑州450001
Author(s):
FANG Hong-yuan1; 2; Ll Jian1; ZHONG Yan-hui1; 2; WANG Fu-ming1; 2
1. School of Water Conservancv and Environment . Zhenezhou Universitv . Zhengzhou 450001 .China: 2.Henan Province Collabo-rative Innovation Center of Water Conservancy and’Transportation Infrastructure Safety , Zhengzhou 450001 , China
关键词:
层状结构; 质量评价; 电磁波; 精细积分; 数值模型
Keywords:
layered structure ;  quality evaluation; electromagnetic wave ;  precise integration method;  numerical
分类号:
U412.6
DOI:
10.3969/ j. issn.1671 -6833.2015.04.020
文献标志码:
A
摘要:
探地雷达(GPR)目前已经广泛应用于路面质量评价中,通过对GPR回波信号进行反演分析可以得到路面各层材料的厚度、介电常数等指标.构建探地雷达电磁波在路面结构层中传播的精确高效数值模型是保证反演精度和反演速度的关键.基于精细积分方法建立探地雷达电磁波在层状结构中传播的数值模型,该模型可精确模拟层状介质中探地雷达电磁波的传播过程.数值计算结果表明,模拟信号在波幅、时延等关键指标方面与实测波形吻合良好.此外,相比于传统时域有限差分方法,同等精度下，本算法可节省约40%的计算时间.
Abstract:
Ground Penetrating Radar ( GPR) has been widely applied in pavement quality detection. Thick-ness and dielectric constant of pavement structure can be obtained by inverse analysis of GPR echo signal. Theprecise and efficient numerical model of electromagnetic wave propagation in layered pavement structure is akey for inversion. The precise integration method ( PM) is developed to simulate GPR wave propagating inlayered structure in this paper. The numerical results show that simulated waveform fits well with measuredsignal,such as amplitude,time delay. In addition,the proposed method can save 40% CPU time comparedwith the traditional FDTD method.
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