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| Presentation | 2019-12-12 15:30 Doppler Spectrum Analysis of Sea Surface Using MR-FDTD Method Hiroki Kobayashi, Toru Uno (TUAT), Satoshi Fujii (Ryukyus Univ.), Takuji Arima (TUAT)  AP2019-147 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Sea state observation technology using ocean radar can be applied to tsunami detection, drift fluid tracking, tide detection, drift ice monitoring and so on. Ocean radar can calculate the velocity of the ocean current by illuminating radio waves to the sea surface and measuring the scattered waves. However, when the wavelength of the sea surface is an integer multiple of half the wavelength of the illuminated radio wave, it is reported that the peak of measured Doppler spectrum was deviated from the Doppler shift caused by the phase velocity of the sea surface. The purpose of this study is to clarify the cause of this phenomenon by simulation. In this paper, ocean radar was reproduced on the simulation using MR-FDTD method, and it was verified whether the same phenomenon as actual measurement could be confirmed. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Ocean radar / MR-FDTD method / Bragg scattering / Doppler spectrum / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 119, no. 336, AP2019-147, pp. 31-35, Dec. 2019. | |
| Paper # | AP2019-147 | |
| Date of Issue | 2019-12-05 (AP) | |
| ISSN | 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 | AP2019-147 |
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| Conference Information | |
| Committee | AP |
| Conference Date | 2019-12-12 - 2019-12-12 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kikai-Shinko-Kaikan Bldg. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Antennas and Propagation |
| Paper Information | |
| Registration To | AP |
| Conference Code | 2019-12-AP |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Doppler Spectrum Analysis of Sea Surface Using MR-FDTD Method |
| Sub Title (in English) | |
| Keyword(1) | Ocean radar |
| Keyword(2) | MR-FDTD method |
| Keyword(3) | Bragg scattering |
| Keyword(4) | Doppler spectrum |
| Keyword(5) | |
| Keyword(6) | |
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| Keyword(8) | |
| 1st Author's Name | Hiroki Kobayashi |
| 1st Author's Affiliation | Tokyo University of Agriculture and Technology (TUAT) |
| 2nd Author's Name | Toru Uno |
| 2nd Author's Affiliation | Tokyo University of Agriculture and Technology (TUAT) |
| 3rd Author's Name | Satoshi Fujii |
| 3rd Author's Affiliation | University of the Ryukyus (Ryukyus Univ.) |
| 4th Author's Name | Takuji Arima |
| 4th Author's Affiliation | Tokyo University of Agriculture and Technology (TUAT) |
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| Speaker | Author-1 |
| Date Time | 2019-12-12 15:30:00 |
| Presentation Time | 25 minutes |
| Registration for | AP |
| Paper # | AP2019-147 |
| Volume (vol) | vol.119 |
| Number (no) | no.336 |
| Page | pp.31-35 |
| #Pages | 5 |
| Date of Issue | 2019-12-05 (AP) |
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