| Presentation | 2017-01-27 Inspection of cavity in the concrete using FBTS Algorithm with Multigrid Algorithm Akio Hiroshige, Kouichi Tochiki, Toshiyuki Tanaka, Toshifumi Moriyama, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In cavity survey in a concrete structure using electromagnetic waves, it is often the case that the transmitting antenna and the receiving antenna can be set up only on one surface of the concrete structure. In this case, in the exploration of a large cavity, only the cavity near the concrete surface is reconstructed, so it is difficult to specify the size of the cavity. Therefore, we introduce the concept of multi grid for division of search area. That is, the cavity survey is performed roughly with a coarse grid and is corrected with a fine grid. Furthermore, the reconstruction image is made up for a deficiency in the cavity by restriction. The FBTS method is used for solving the inverse problem and the same current source is used for all multigrid levels. The effectiveness of the proposed method is confirmed by numerical calculation. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Concrete diagnostics / cavity detection / Multigrid / FBTS algorithm / Non-destructive test |
| Paper # | SANE2016-116 |
| Date of Issue | 2017-01-19 (SANE) |
| Conference Information | |
| Committee | SANE |
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| Conference Date | 2017/1/26(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Nagasaki Prefectural Art Museum |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Positioning, navigation, Radar and general |
| Chair | Hirokazu Kobayashi(Osaka Inst. of Tech.) |
| Vice Chair | Takahide Mizuno(JAXA) / Toshifumi Moriyama(Nagasaki Univ.) |
| Secretary | Takahide Mizuno(JAXA) / Toshifumi Moriyama(Mitsubishi Electric) |
| Assistant | Atsushi Kezuka(ENRI) / Manabu Akita(Univ. of Electro-Comm.) |
| Paper Information | |
| Registration To | Technical Committee on Space, Aeronautical and Navigational Electronics |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Inspection of cavity in the concrete using FBTS Algorithm with Multigrid Algorithm |
| Sub Title (in English) | |
| Keyword(1) | Concrete diagnostics |
| Keyword(2) | cavity detection |
| Keyword(3) | Multigrid |
| Keyword(4) | FBTS algorithm |
| Keyword(5) | Non-destructive test |
| 1st Author's Name | Akio Hiroshige |
| 1st Author's Affiliation | Nagasaki University(Nagasaki Univ) |
| 2nd Author's Name | Kouichi Tochiki |
| 2nd Author's Affiliation | Nagasaki University(Nagasaki Univ) |
| 3rd Author's Name | Toshiyuki Tanaka |
| 3rd Author's Affiliation | Nagasaki University(Nagasaki Univ) |
| 4th Author's Name | Toshifumi Moriyama |
| 4th Author's Affiliation | Nagasaki University(Nagasaki Univ) |
| Date | 2017-01-27 |
| Paper # | SANE2016-116 |
| Volume (vol) | vol.116 |
| Number (no) | SANE-427 |
| Page | pp.pp.115-120(SANE), |
| #Pages | 6 |
| Date of Issue | 2017-01-19 (SANE) |