Polarimetric borehole radar approach to subsurface fracture classification

Motoyuki Sato, Moriyasu Takeshita

研究成果: Conference article査読

3 被引用数 (Scopus)

抄録

In order to overcome the limitation of radar resolution, we proposed to use radar polarimetry in borehole radar. Even though the radar resolution is much less than the shape of the scattering object such as subsurface fracture, polarization status contains information about the scatterer. We applied the radar polarimetry to subsurface fracture measurement, and this information was used for classifying fractures. Due to the low resolution of the radar, accurate phase information was not easy to obtain. Therefore, we developed a technique to use power of the gated signal in the actual radar measurement. Using this parameter, we found that the polarimetric ratio of the gated power can be used for evaluation of the fracture. Polarization power ratio indicates that the fractures can be classified into clusters, and we think that this technique can be used for better understanding of each fracture structure.

本文言語English
ページ(範囲)50-54
ページ数5
ジャーナルProceedings of SPIE - The International Society for Optical Engineering
4084
出版ステータスPublished - 2000 1月 1
イベントGPR 2000: The 8th International Conference on Ground Penetrating Radar - Goldcoast, Aust
継続期間: 2000 5月 232000 5月 26

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • コンピュータ サイエンスの応用
  • 応用数学
  • 電子工学および電気工学

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