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Modelling the propagation of a radar signal through concrete as a low-pass filter

Shaari, A. and Millard, S. G. and Bungey, J. H. (2004) Modelling the propagation of a radar signal through concrete as a low-pass filter. NDT&E International, 37 . pp. 237-242.

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Official URL: http://dx.doi.org/10.1016/j.ndteint.2003.09.009

Abstract

The knowledge of how a dispersive, dielectric medium such as concrete affects a propagating short electromagnetic pulse used in ground penetrating radar (GPR) is helpful both in the interpretation of radar results and in the prediction/modelling of expected radar measurements. Although there are a number of published results on the frequency-dependent, dielectric properties of media such as concrete and soils, the use of this information is still relatively small, primarily due the lack of a reliable method of applying these properties to propagating radar pulses. Modelling the dielectric medium as low-pass filter is one solution to this difficulty. In this paper the propagation of short pulses in concrete with known frequency-dependent properties is studied. The extent of how the pulses are attenuated and distorted is analysed and the implications on GPR applications are also discussed

Item Type:Article
Uncontrolled Keywords:Radar; Modelling; Propagation; Concrete; Low-pass; Filter; Signal processing; Dielectric properties; GPR; Antenna
Subjects:T Technology > TA Engineering (General). Civil engineering (General)
Divisions:Civil Engineering
ID Code:6726
Deposited By: Dr. Amiruddin Shaari
Deposited On:29 Oct 2008 09:18
Last Modified:01 Jun 2010 15:46

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