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Three-dimensional location and classifications of faults, fractures and veins by an array type borehole radar

Research Project

Project/Area Number 24360374
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypePartial Multi-year Fund
Section一般
Research Field Earth system and resources enginnering
Research InstitutionOsaka Electro-Communication University

Principal Investigator

EBIHARA Satoshi  大阪電気通信大学, 工学部, 教授 (20301046)

Project Period (FY) 2012-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥15,470,000 (Direct Cost: ¥11,900,000、Indirect Cost: ¥3,570,000)
Fiscal Year 2014: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2013: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2012: ¥10,010,000 (Direct Cost: ¥7,700,000、Indirect Cost: ¥2,310,000)
Keywordsボアホールレーダ / 指向性ボアホールレーダ / 地下計測 / 電磁波 / 坑井 / 指向性 / 偏波 / 断層 / き裂
Outline of Final Research Achievements

This research proposes a signal processing method suitable for a dipole array and a loop antenna in a borehole (DALAB) that enables estimation of the polarization states of a wave incident on the DALAB in directional borehole radar. In the processing, we pick complex amplitudes of both a dipole signal and a loop signal in the time domain, and calculate a ratio of the two amplitudes. The polarization state is estimated by comparing the theoretical and experimental ratios. We then applied the signal processing method to field experimental data. This experiment consists of a vertical conducting cylinder and inhomogeneity caused by an interface. We found an almost vertical and linearly polarized wave from the vertical conducting cylinder are estimated by the DALAB, whereas a rather elliptical and horizontally polarized wave are estimated from the inhomogeneity.

Report

(4 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Annual Research Report
  • 2012 Annual Research Report
  • Research Products

    (14 results)

All 2015 2014 2013 2012 2011 Other

All Journal Article (6 results) (of which Peer Reviewed: 6 results,  Acknowledgement Compliant: 1 results) Presentation (5 results) Remarks (2 results) Patent(Industrial Property Rights) (1 results) (of which Overseas: 1 results)

  • [Journal Article] Coaxial-fed Circular Dipole Array Antenna with Ferrite Loading for Thin Directional Borehole Radar Sonde2015

    • Author(s)
      1.S. Ebihara, Y. Kimura, T. Shimomura, R. Uchimura and H. Choshi
    • Journal Title

      IEEE Transaction on Geoscience and Remote Sensing

      Volume: 53 Issue: 4 Pages: 1842-1854

    • DOI

      10.1109/tgrs.2014.2349921

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] 指向性ボアホールレーダ用ダイポールアレーアンテナにおける 素子間干渉を考慮した設計法の検討2013

    • Author(s)
      1.海老原 聡, 田中 正一
    • Journal Title

      電子情報通信学会論文誌

      Volume: Vol.J96-B,No.5 Pages: 539-550

    • NAID

      110009604973

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Estimating 3-D Position and Inclination of a Planar Interface with Directional Borehole Radar2013

    • Author(s)
      S. Ebihara, H. Kawai and K. Wada
    • Journal Title

      Near Surface Geophysics

      Volume: 11 Issue: 2 Pages: 185-195

    • DOI

      10.3997/1873-0604.2012039

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Interference Criterion for Coaxial-Fed Circular Dipole Array Antenna in a Borehole2012

    • Author(s)
      S. Ebihara, H. Hanaoka, T. Okumura, Y. Wada
    • Journal Title

      IEEE Transaction on Geoscience and Remote Sensing

      Volume: (印刷中) Issue: 9 Pages: 17-17

    • DOI

      10.1109/tgrs.2011.2182517

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effect of ferrite beads on reduction of resonance of thin conducting cylinder in a water-filled borehole2012

    • Author(s)
      S. Ebihara, K. Toma
    • Journal Title

      Proceedings of the Int. Conf. on GPR

      Volume: 1 Pages: 901-905

    • DOI

      10.1109/icgpr.2012.6254990

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Analysis of a direct wave in directional borehole radar with a circular dipole array antenna2012

    • Author(s)
      S. Ebihara, K. Onoda
    • Journal Title

      Proceedings of the Int. Conf. on GPR

      Volume: 1 Pages: 887-891

    • DOI

      10.1109/icgpr.2012.6254987

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Presentation] Small-diameter directional borehole radar system with 3D sensing capability2014

    • Author(s)
      1.K. Wada, S. Karasawa, K. Kawata and S. Ebihara
    • Organizer
      Proceedings of the Int. Conf. on GPR
    • Place of Presentation
      Square Brussels Meeting Centre (Brussels, Belgium)
    • Year and Date
      2014-06-30 – 2014-07-04
    • Related Report
      2014 Annual Research Report
  • [Presentation] Dipole Array Antenna and Loop Antenna for Estimation of DOA and Polarization in Borehole Radar2014

    • Author(s)
      2.S. Ebihara, A. Uemura, T. Kuroda and H. Soda
    • Organizer
      Proceedings of the Int. Conf. on GPR
    • Place of Presentation
      Square Brussels Meeting Centre ( Brussels, Belgium)
    • Year and Date
      2014-06-30 – 2014-07-04
    • Related Report
      2014 Annual Research Report
  • [Presentation] Estimating 3-D Position of a Fault in Kamioka Mine with Directional Borehole Radar2013

    • Author(s)
      1.S. Ebihara, Y. Kimura, T. Shimomura and R. Uchimura
    • Organizer
      Proceedings of the 11th SEGJ International Symposium
    • Place of Presentation
      Yokohama, Japan
    • Related Report
      2013 Annual Research Report
  • [Presentation] Singlehole Borehole Radar Measurement with a Thin Directional Borehole Radar Sonde2013

    • Author(s)
      S. Ebihara, Y. Kimura, T. Shimomura and R. Uchimura
    • Organizer
      Proceedings of the 7th International Workshop on Advanced Ground-Penetrating Radar (IWAGPR2013)
    • Place of Presentation
      Nantes, France
    • Related Report
      2013 Annual Research Report
  • [Presentation] 同軸給電したダイポールアレーアンテナ型指向性ボアホールレーダによる断層のイメージング2011

    • Author(s)
      海老原聡、河合秀昭、和田一成
    • Organizer
      第124回物理探査学会学術講演会(平成23年度春季)
    • Place of Presentation
      早稲田大学
    • Year and Date
      2011-05-12
    • Related Report
      2012 Annual Research Report
  • [Remarks] 大阪電気通信大学 教員情報データベース 海老原聡

    • URL

      https://research.osakac.ac.jp/index.php?%E6%B5%B7%E8%80%81%E5%8E%9F%E3%80%80%E8%81%A1

    • Related Report
      2013 Annual Research Report
  • [Remarks]

    • URL

      http://research.osakac.ac.jp/index.php?%E6%B5%B7%E8%80%81%E5%8E%9F%E3%80%80%E8%81%A1

    • Related Report
      2012 Annual Research Report
  • [Patent(Industrial Property Rights)] Transmitting Electric Power Using Electromagnetic Waves2012

    • Inventor(s)
      S. EBIHARA、K. KAWATA
    • Industrial Property Rights Holder
      インテレクチュアルベンチャーズ
    • Filing Date
      2012-06-13
    • Related Report
      2012 Annual Research Report
    • Overseas

URL: 

Published: 2012-04-24   Modified: 2019-07-29  

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