1887
Volume 11 Number 2
  • ISSN: 1569-4445
  • E-ISSN: 1873-0604

Abstract

ABSTRACT

In this paper, we present a signal processing method suitable for estimating the position of a planar interface and its inclination using a directional borehole radar. The receiving directive antenna in a radar system is a coaxial‐fed circular dipole array antenna in a borehole (CFCAB), which we have proposed previously. The method combines least‐square fitting with a model of plane‐wave incidence and uses an inverse boundary scattering transform. This approach makes it possible to estimate parameters from measurements collected at only two narrowly separated depths of a radar sonde. We give a numerical example to verify the proposed method. In this simulation, the array data were generated with the Method of Moments modified for a borehole radar. We conducted field experiments in the Nakatatsu mine in Japan, where there is a fault in the skarn. We constructed a 3D image of the fault with a directional borehole radar and the signal processing method. The image agrees well with the information obtained from boring core samples and observations in the gallery.

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2012-08-01
2024-04-19
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References

  1. BalanisC.A.2005. Antenna Theory, 3rd edition. John Wiley & Sons, Inc.
    [Google Scholar]
  2. BehaimanotK., BoegerM. and GlasmachersA.2010. Directional borehole radar antenna calibration.Proceedings of the Instrumentation and Measurement Technology Conference (I2MTC), Houston, Vol. I, pp. 1398–1403.
    [Google Scholar]
  3. BorchertO., BehaimanotaK. and GlasmachersaA.2009. Directional borehole radar calibration.Journal of Applied Geophysics67, 352–360.
    [Google Scholar]
  4. CaiJ. and McMechanG.A.1995. Ray‐based synthesis of bistatic ground‐penetrating radar profiles.Geophysics60, 87–96.
    [Google Scholar]
  5. ChewW.C.1995. Waves and Field in Inhomogeneous Media. New York, IEEE Press.
    [Google Scholar]
  6. DanielsD.J.2004. Ground Penetrating Radar, 2nd edition. The Institute of Electrical Engineers.
    [Google Scholar]
  7. DuboisJ.1995. Borehole radar experiment in limestone: Analysis and data processing.First Break13(2).
    [Google Scholar]
  8. EbiharaS.2004. Directional borehole radar with dipole antenna array using optical modulators.IEEE Transactions on Geoscience and Remote Sensing42, 45–58.
    [Google Scholar]
  9. EbiharaS. and ChewW.C.2003. Calculation of Sommerfeld integrals for modeling vertical dipole array antenna for borehole radar.IEICE Transactions on ElectronicsE86‐C, 2085–2096.
    [Google Scholar]
  10. EbiharaS., HanaokaH. and OkumuraT.2010a. Influence of feed line on DOA estimation with dipole array antenna for directional borehole radar.Proceedings of the XIII International Conference on Ground Penetrating Radar (GPR2010), LECCE, Vol. I, pp. 810–815.
    [Google Scholar]
  11. EbiharaS., HanaokaH., OkumuraT. and WadaY.2012. Interference Criterion for Coaxial‐Fed Circular Dipole Array Antenna in a Borehole.IEEE Transactions on Geoscience and Remote Sensing50 (in press).
    [Google Scholar]
  12. EbiharaS. and HashimotoY.2007. MoM Analysis of dipole antennas in crosshole borehole radar, and field experiments.IEEE transactions on Geoscience and Remote Sensing45, 2435–2450.
    [Google Scholar]
  13. EbiharaS. and InoueY.2009. Analysis of Eccentered Dipole Antenna for Borehole Radar.IEEE Transactions on Geoscience and Remote Sensing47, 1073–1088.
    [Google Scholar]
  14. EbiharaS. and KawaiH.2010b. Singlehole Borehole Rader Measurement Using Dipole Array Antenna Fed by Coaxial Cable.Proceedings of the XIII International Conference on Ground Penetrating Radar (GPR2010), LECCE, Vol. I, pp. 145–150.
    [Google Scholar]
  15. EbiharaS., NagoyaK., AbeN. and ToidaM.2006b. Experimental studies for monitoring water level by dipole antenna array radar fixed in subsurface.Near Surface Geophysics4, 89–96.
    [Google Scholar]
  16. EbiharaS., SasakuraA. and TakemotoT.2011. HE11 Mode Effect on Direct Wave in Single‐Hole Borehole Radar.IEEE Transactions on Geoscience and Remote Sensing49, 854–867.
    [Google Scholar]
  17. EbiharaS., SatoM. and NiitsumaH.1998. Analysis of a guided wave along a conducting structure in a borehole.Geophysical Prospecting46, 489–505.
    [Google Scholar]
  18. EbiharaS., SatoM. and NiitsumaH.2000. Super‐resolution of coherent targets by a directional borehole radar.IEEE Transactions on Geoscience and Remote Sensing38, 1725–1732.
    [Google Scholar]
  19. EbiharaS. and YamamotoT.2006a. Resonance Analysis of Circular Dipole Array Antenna in Cylindrically Layered Media for Directional Borehole Radar.IEEE Transactions on Geoscience and Remote Sensing44, 22–31.
    [Google Scholar]
  20. GreenhalghS.A. and MarescotL.2006. Modeling and Migration of 2‐D Georadar Data: A Stationary Phase Approach.IEEE Transactions on Geoscience and Remote Sensing44, 2421–2429.
    [Google Scholar]
  21. GundelachV. and EisenburgerD.2007. Principle of a direction sensitive borehole antenna with advanced technology and data examples.Proceedings of the 4th International Workshop on Advanced Ground Penetrating Radar, Vol. I, pp. 28–31.
    [Google Scholar]
  22. HansenT.B.1999. The far field of a borehole radar and its reflection at a planar interface.IEEE Transactions on Geoscience and Remote Sensing37, 1940–1950.
    [Google Scholar]
  23. HuangY., ZhangJ. and LiuQ.H.2011. Three‐Dimensional GPR Ray Tracing Based on Wavefront Expansion With Irregular Cells.IEEE Transactions on Geoscience and Remote Sensing49, 679–687.
    [Google Scholar]
  24. IrvingJ.D., KnollM.D. and KnightR.J.2007. Improving crosshole radar velocity tomograms: A new approach to incorporating high‐angle travel time data.Geophysics72, J31–J41.
    [Google Scholar]
  25. KideraS., KaniY., SakamotoT. and SatoT.2008a. Fast and Accurate 3‐D Imaging Algorithm with Linear Array Antennas for UWB Pulse Radars.IEICE Transactions CommunicationsE91‐B, 2683–2691.
    [Google Scholar]
  26. KideraS., SakamotoT. and SatoT.2008b. High‐Resolution and Real‐Time Three‐Dimensional Imaging Algorithm with Envelopes of Spheres for UWB Radars.IEEE Transactions on Geoscience and Remote Sensing46, 3503–3513.
    [Google Scholar]
  27. KideraS., SakamotoT. and SatoT.2009. High‐Resolution 3‐D Imaging Algorithm with an Envelope of Modified Spheres for UWB Through‐the‐Wall Radars.IEEE Transactions on Antennas and Propagation57, 3520–3529.
    [Google Scholar]
  28. KideraS., SakamotoT. and SatoT.2010. Accurate UWB Radar Three‐Dimensional Imaging Algorithm for a Complex Boundary without Range Point Connections.IEEE Transactions on Geoscience and Remote Sensing48, 1993–2004.
    [Google Scholar]
  29. LiuS. and SatoM.2005. Transient radiation from an unloaded, finite dipole antenna in a borehole: Experiment and numerical results.Geophysics70, K43–K51.
    [Google Scholar]
  30. MorgenthalerA.W. and RappaportC.M.2011. GPR Wave Scattering From Complex Objects Using the Semi‐Analytic Mode Matching Algorithm: Coordinate Scattering Center Selection.IEEE Transactions on Geoscience and Remote Sensing49, 1949–1956.
    [Google Scholar]
  31. MoultonC.W., WrightD.L., HuttonS.R., Vong SmithD. and AbrahamJ.D.2002. Basalt‐flow imaging using a high‐resolution directional borehole radar.Proceedings of the Ninth International conference on ground penetrating radar, Vol. I, pp. 13–18.
    [Google Scholar]
  32. SakamotoT.2007. A Fast Algorithm for 3‐Dimensional Imaging with UWB Pulse Radar Systems.IEICE Transactions CommunicationsE90‐B, 636–644.
    [Google Scholar]
  33. SakamotoT. and SatoT.2004. A Target Shape Estimation Algorithm for Pulse Radar Systems Based on Boundary Scattering Transform.IEICE Transactions CommunicationsE87‐B, 1357–1365.
    [Google Scholar]
  34. SatoM. and TakayamaT.2007. A Novel Directional Borehole Radar System Using Optical Electric Field Sensors.IEEE Transactions on Geoscience and Remote Sensing45, 2529–2535.
    [Google Scholar]
  35. SatoM. and ThierbachR.1991. Analysis of a borehole radar in cross‐hole mode.IEEE Transactions on Geoscience and Remote Sensing29, 899–904.
    [Google Scholar]
  36. SatoT., WakayamaT. and TakemuraK.2000. An imaging algorithm of objects embedded in a lossy‐dispersive medium for subsurface radar‐data processing.IEEE Transactions on Geoscience and Remote Sensing38, 296–303.
    [Google Scholar]
  37. SlobE., SatoM. and OlhoeftG.2010. Surface and borehole ground‐penetrating‐radar developments.Geophysics75, 75A103–75A120.
    [Google Scholar]
  38. TakayamaT. and SatoM.2007. A Novel Direction‐Finding Algorithm for Directional Borehole Radar.IEEE Transactions on Geoscience and Remote Sensing45, 2520–2528.
    [Google Scholar]
  39. van WaardR., van der BaanS. and van DongenK.W.A.2004. Experimental data of a directional borehole radar system for UXO detection.Proceedings of the Tenth International Conference on Ground Penetrating Radar (GPR 2004), Vol. I, pp. 225–228.
    [Google Scholar]
  40. ZhaoJ. and SatoM.2006. Radar Polarimetry Analysis Applied to Single‐Hole Fully Polarimetric Borehole Radar.IEEE Transactions on Geoscience and Remote Sensing44, 3547–3554.
    [Google Scholar]
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