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http://dx.doi.org/10.5515/KJKIEES.2019.30.5.399

Characteristic Changes in Ground-Penetrating Radar Responses from Dielectric-Filled Nonmetallic Pipes Buried in Inhomogeneous Ground  

Hyun, Seung-Yeup (School of Electrical, Electronic, Telecommunication and Computer Engineering, Jeju National University)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.30, no.5, 2019 , pp. 399-406 More about this Journal
Abstract
The variation of ground-penetrating radar(GPR) signal characteristics from dielectric-filled nonmetallic pipes buried in inhomogeneous ground are compared through a numerical simulation. The relative permittivity distribution of the ground is generated by using the continuous random media(CRM) technique. As a function of the relative permittivity of the material filling the nonmetallic pipe buried in the ground media, GPR signals are simulated by using the finite-difference time-domain(FDTD) method. We show that, unlike the case for homogeneous ground, the distortion characteristics of the reflected waves caused by the front convex surface and the rear concave surface of the pipe buried in inhomogeneous ground are different depending on the permittivity contrast between the inside and outside of the pipe.
Keywords
Continuous Random Media(CRM); Finite-Difference Time-Domain(FDTD) Method; Ground-Penetrating Radar(GPR); Inhomogeneous Ground; Nonmetallic Pipe;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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