Analysis of directional borehole radar measurement data

T. Takayama, M. Sato, J. H. Kim

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

1 Citation (Scopus)

Abstract

We developed a new directional borehole radar system with an array of optical electric field sensors as receivers. The system was tested in a field test site in order to assert its ability to detect three dimensional (3D) location of a subsurface tunnel. In this paper, the result is shown with a comparison to a result obtained by RAMAC directional borehole radar system. It is found that the optical electric field sensors are able to obtain highly coherent signals, that is necessary for the accurate estimation of a target azimuth direction, over the RAMAC system. The mutual coupling effect that deteriorates the coherence is also discussed. The azimuth estimation of the subsurface tunnel, which is located 5.5m apart from the tunnel, showed good agreement with the actual direction to an error of within 10 degree.

Original languageEnglish
Title of host publicationProceedings of the 2007 4th International Workshop on Advanced Ground Penetrating Radar, IWAGPR 2007
Pages32-35
Number of pages4
DOIs
Publication statusPublished - 2007 Dec 1
Event4th International Workshop on Advanced Ground Penetrating Radar, IWAGPR 2007 - Naples, Italy
Duration: 2007 Jun 272007 Jun 29

Publication series

NameProceedings of the 2007 4th International Workshop on Advanced Ground Penetrating Radar, IWAGPR 2007

Other

Other4th International Workshop on Advanced Ground Penetrating Radar, IWAGPR 2007
CountryItaly
CityNaples
Period07/6/2707/6/29

Keywords

  • Antenna array
  • Azimuth estimation
  • Coherence
  • Directional borehole radar
  • Optical electric field sensor

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Geotechnical Engineering and Engineering Geology
  • Electrical and Electronic Engineering
  • Communication

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  • Cite this

    Takayama, T., Sato, M., & Kim, J. H. (2007). Analysis of directional borehole radar measurement data. In Proceedings of the 2007 4th International Workshop on Advanced Ground Penetrating Radar, IWAGPR 2007 (pp. 32-35). [4278843] (Proceedings of the 2007 4th International Workshop on Advanced Ground Penetrating Radar, IWAGPR 2007). https://doi.org/10.1109/AGPR.2007.386520