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| Presentation | 2017-11-17 14:35 Three-dimensional underground imaging -- Study on surface wave reduction method using LM algorithm -- Yudai Kikuyama, Ryo Toh (Chiba Inst. Tech.)  US2017-71 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | When image the underground objects, the reflected waves from underground objects are interfered with Rayleigh wave, and this influence may cause a significant reduction in image quality. In this research, we study the method to reduce the Rayleigh wave component. First, Rayleigh wave components are mathematically modeled, and parameters of the mathematical model are estimated by the least-square numerical analysis method, comparing with the part of Rayleigh wave component before the underground reflected waves in the measured received signals. As the least-square method, the Gauss-Newton method and the Levenberg-Marquardt method were compared and discussed. In addition, the initial value setting method considering the characteristics of Rayleigh wave used in this work was studied. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Underground imaging / Rayleigh wave / Levenberg-Marquardt method / Initial value / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 117, no. 311, US2017-71, pp. 37-39, Nov. 2017. | |
| Paper # | US2017-71 | |
| Date of Issue | 2017-11-10 (US) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | US2017-71 |
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| Conference Information | |
| Committee | US |
| Conference Date | 2017-11-17 - 2017-11-17 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Honda Electronics Co. Ltd. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | US |
| Conference Code | 2017-11-US |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Three-dimensional underground imaging |
| Sub Title (in English) | Study on surface wave reduction method using LM algorithm |
| Keyword(1) | Underground imaging |
| Keyword(2) | Rayleigh wave |
| Keyword(3) | Levenberg-Marquardt method |
| Keyword(4) | Initial value |
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| 1st Author's Name | Yudai Kikuyama |
| 1st Author's Affiliation | Chiba Institute Of Technology (Chiba Inst. Tech.) |
| 2nd Author's Name | Ryo Toh |
| 2nd Author's Affiliation | Chiba Institute Of Technology (Chiba Inst. Tech.) |
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| Speaker | Author-1 |
| Date Time | 2017-11-17 14:35:00 |
| Presentation Time | 25 minutes |
| Registration for | US |
| Paper # | US2017-71 |
| Volume (vol) | vol.117 |
| Number (no) | no.311 |
| Page | pp.37-39 |
| #Pages | 3 |
| Date of Issue | 2017-11-10 (US) |
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