Robust estimation of dielectric constant by GPR using an antenna array

Hai Liu, Motoyuki Sato

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Citations (Scopus)

Abstract

In this paper, we proposed a new cross -correlation sum making use of the complex analytic signal to calculate the coherency of the signals for velocity spectrum analysis. It can estimate dielectric constant from multi-channel dataset robustly even the signal with low SNR. On the other hand, a vector network analyzer based GPR system with an antenna array was developed. The antenna array consisted of one transmit antenna and five receive antennas and it can detect the refection signals at different antenna offset with a high signal-to-clutter ratio. Air layer, gypsum wall and concrete wall of different thickness from 10 cm to 30 cm were tested and four field datasets on asphalt pavement of highway road were collected. The estimation results of dielectric constant and layer thickness validated the accuracy. The maximum errors of the thickness estimation results were less than 1.3cm and the relative errors were smaller than 11%.

Original languageEnglish
Title of host publication2011 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2011 - Proceedings
Pages178-181
Number of pages4
DOIs
Publication statusPublished - 2011 Nov 16
Event2011 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2011 - Vancouver, BC, Canada
Duration: 2011 Jul 242011 Jul 29

Publication series

NameInternational Geoscience and Remote Sensing Symposium (IGARSS)

Other

Other2011 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2011
CountryCanada
CityVancouver, BC
Period11/7/2411/7/29

Keywords

  • Ground penetrating radar (GPR)
  • dielectric constant
  • thickness estimation
  • velocity spectrum

ASJC Scopus subject areas

  • Computer Science Applications
  • Earth and Planetary Sciences(all)

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