Irregular changes in antenna height during high speed scanning as a source of essential errors in measuring the thickness of asphalt

Alan Frid, Vladimir Frid

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

The use of ground-based radar (GPR) to scan the subsurface pavement structure allows to diagnose the road surface, determine the thickness of pavement layers, assess the existence of structural disturbances under the road surface, and so on. Network scale GPR scanning are performed at high speed using an air-coupled (horn) antennae in order to avoid interference with traffic. The requirement of the regulator for measurements on highways at high speed contradicts the need for high-quality data collection, which causes errors in determining the thickness of the asphalt. One of the reasons for such error is the irregular changes in antenna height during the scanning at high speed. This article discusses the range of this error and shows that the accuracy of asphalt thickness measurement depends not only on the antenna height, but also on the value of dielectric permittivity and signal scattering at the reference point.

Original languageEnglish
Title of host publication2018 17th International Conference on Ground Penetrating Radar, GPR 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Print)9781538657775
DOIs
StatePublished - 20 Aug 2018
Externally publishedYes
Event17th International Conference on Ground Penetrating Radar, GPR 2018 - Rapperswil, Switzerland
Duration: 18 Jun 201821 Jun 2018

Publication series

Name2018 17th International Conference on Ground Penetrating Radar, GPR 2018

Conference

Conference17th International Conference on Ground Penetrating Radar, GPR 2018
Country/TerritorySwitzerland
CityRapperswil
Period18/06/1821/06/18

Keywords

  • GPR
  • asphalt
  • highway scanning
  • pavement

ASJC Scopus subject areas

  • Earth-Surface Processes
  • Instrumentation

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