2017 Fiscal Year Final Research Report
Full polarimetric directional borehole radar for 3-D single-hole borehole radar measurement
| Project/Area Number |
15K06642
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Earth system and resources engineering
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| Research Institution | Osaka Electro-Communication University |
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Principal Investigator |
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| Research Collaborator |
WADA Kazushige 三井金属資源開発株式会社, 代表取締役社長
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Keywords | ボアホールレーダ / 地中レーダ |
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| Outline of Final Research Achievements |
We developed full polarimetric direction borehole radar. In this radar, we may have six antenna elements maximally at both a transmitter and a receiver. The single-hole measurement showed occurrence of guide modes such as HE11 mode in single-hole measurement. However, we found that we might remove it with an optimal bandpass filtering. We conducted field experiments with a vertical foundation pile and an inclined borehole. In this measurement, we made use of the polarization information with the developed radar. The experimental results showed that successful estimation of an inclination of the pile as well as a position in three-dimensional space. Additionally the experimental and theoretical investigation showed that there are critical situations when a plane wave is incident on the dipole array antenna obliquely.
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| Free Research Field |
地下電磁波計測工学
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