Suppression of multi-path coupling in scaled-down experiment using cross-borehole pulse radar

Jae Hyoung Cho, Jong Gwan Yook, Ji Hyun Jung, Se Yun Kim

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

Abstract

A scaled-down experiment using cross-borehole pulse radar is performed in laboratory to extract a more precise decision rule on detecting an intrusive man-made tunnel in Korea. To minimize the total size, a scaled-down model of an air-filled tunnel in underground rock is replaced by a cylindrical ceramic rod in pure water. When the upper arm of sleeve dipole antenna of the scaled-down cross-borehole pulse radar is directly connected to coaxial cable, the measured B-scan data are contaminated by unwanted striped pattern. Such multi-path coupling between the sleeve antenna pair is generated by the glass tube-guided waves. To suppress the glass tube-guided waves, the coaxial cable is clad in ferrite cores. As the total length of the ferrite core loading is increased up to 150 mm, the unwanted coupling is suppressed gradually and the target signature can be recognized more clearly.

Original languageEnglish
Title of host publication2016 URSI Asia-Pacific Radio Science Conference, URSI AP-RASC 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1024-1027
Number of pages4
ISBN (Electronic)9781467388016
DOIs
Publication statusPublished - 2016 Oct 19
Event2016 URSI Asia-Pacific Radio Science Conference, URSI AP-RASC 2016 - Seoul, Korea, Republic of
Duration: 2016 Aug 212016 Aug 25

Publication series

Name2016 URSI Asia-Pacific Radio Science Conference, URSI AP-RASC 2016

Other

Other2016 URSI Asia-Pacific Radio Science Conference, URSI AP-RASC 2016
CountryKorea, Republic of
CitySeoul
Period16/8/2116/8/25

All Science Journal Classification (ASJC) codes

  • Signal Processing
  • Instrumentation
  • Computer Networks and Communications

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  • Cite this

    Cho, J. H., Yook, J. G., Jung, J. H., & Kim, S. Y. (2016). Suppression of multi-path coupling in scaled-down experiment using cross-borehole pulse radar. In 2016 URSI Asia-Pacific Radio Science Conference, URSI AP-RASC 2016 (pp. 1024-1027). [7601346] (2016 URSI Asia-Pacific Radio Science Conference, URSI AP-RASC 2016). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/URSIAP-RASC.2016.7601346