Position and Diameter Determination of Buried Cylindrical PEC Objects in Unknown Background Medium Using GPR

Document Type : Original Article

Authors

1 PhD Student, Faculty of Engineering, Ferdowsi University of Mashhad, Mashhad, Iran

2 Assistant Professor, Faculty of Engineering, Ferdowsi University of Mashhad, Mashhad, Iran

3 Professor, Faculty of Engineering, Ferdowsi University of Mashhad, Mashhad, Iran

Abstract

Ground penetrating radar (GPR) is a strong tool for non-destructive detection of buried targets. This radar can determine the location and shape of targets based on the received signals from the electromagnetic waves transmitted to the ground. In this paper, we intend to determine the depth and diameter of buried cylindrical conductor targets in an unknown background environment using the ground penetrating radar. Examples include the detection of water, oil or gas pipes buried under the ground. For this purpose, the SAR algorithm is used and a new method for estimating the depth and diameter of the scatterer is proposed, assuming that relative permittivity of the host environment is not known. The geometry of the problem is two-dimensional and the configuration of the antennas is similar to that of the commercial ones, which is multi-monostatic. For assessment, the proposed method is implemented on the raw data related to buried targets at the depth of 1m. The GPRMAX_2Dsoftware is used to provide raw data to reconstruct the shape of scatterer. Results show that the scatterer depth and diameter are estimated with acceptable accuracy.

Keywords

References

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History

  • Receive Date: 06 November 2020
  • Revise Date: 18 March 2021
  • Accept Date: 03 July 2021

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