An investigation into the railway ballast dielectric properties using different GPR antennas and frequency systems

Tosti, Fabio, Bianchini Ciampoli, Luca, Calvi, Alessandro, Alani, Amir and Benedetto, Andrea (2017) An investigation into the railway ballast dielectric properties using different GPR antennas and frequency systems. NDT & E International. ISSN 0963-8695

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Abstract

This paper presents an investigation into the relative dielectric permittivity of railway ballast using ground-penetrating radar (GPR). To this effect, experimental tests are carried out using a container (methacrylate material) of the 1.5 × 1.5 × 0.5 m dimensions. GPR systems equipped with different ground-coupled and air-coupled antennas and central frequencies of 600 MH, 1000 MHz, 1600 MHz and 2000 MHz (standard and low-powered antenna systems) are used for testing purpose. Several processing methods are applied to assess and compare the dielectric permittivity of the ballast system under investigation. Comparison of results identifies critical factors as well as antennas and central frequencies most suitable for the purpose.

Item Type: Article
Additional Information: © 2017. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
Uncontrolled Keywords: Ground-penetrating radar (GPR); Railway ballast; Non-destructive testing; Antenna frequency; Antenna systems; Relative dielectric permittivity
Subjects: Construction and engineering > Civil and environmental engineering
Construction and engineering > Digital signal processing
Construction and engineering > Electrical and electronic engineering
Construction and engineering > Civil and structural engineering
Construction and engineering
Related URLs:
Depositing User: Fabio Tosti
Date Deposited: 09 Oct 2017 13:28
Last Modified: 10 Oct 2017 11:27
URI: http://repository.uwl.ac.uk/id/eprint/3989

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