The Precise and Efficient Numerical Model for Ground PenetratingRadar ( GPR) Wave Propagation in Pavement Structure
[1]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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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
36
Number of periods:
2015 04
Page number:
87-91
Column:
Public date:
2015-08-31
- Title:
- The Precise and Efficient Numerical Model for Ground PenetratingRadar ( GPR) Wave Propagation in Pavement Structure
- Keywords:
- layered structure ; quality evaluation; electromagnetic wave ; precise integration method; numerical
- CLC:
- U412.6
- 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.
- References:
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