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| Presentation | 2009-08-28 13:00 Recent results of research on time-reversal communication in the deep ocean. Takuya Shimura, Hiroshi Ochi, Yoshitaka Watanabe (JAMSTEC), Takehito Hattori (NME)  US2009-29 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | We have researched on time-reversal communication in the deep ocean and have proposed a method of combining time reversal and adaptive equalization. In the previous at-experiments, communications at the range from 10 to 100 km were demonstrated with synthetic time-reversal array. In this experiment, passive time-reversal communication was achieved with a real receiver array to the range of 300 km first as the experiment intended for communication. Chirp signals and M-sequence signals are used as a probe signal at the data rates of 50 and 100 bps. In spite of Doppler Effect, the proposed method achieves demodulation with no error. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | phase-conjugate wave / time-reversal wave / underwater acoustic communication / adaptive equalization / at-sea experiments / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 109, no. 180, US2009-29, pp. 1-5, Aug. 2009. | |
| Paper # | US2009-29 | |
| Date of Issue | 2009-08-21 (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 | US2009-29 |
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| Conference Information | |
| Committee | US |
| Conference Date | 2009-08-28 - 2009-08-28 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | US |
| Conference Code | 2009-08-US |
| Language | English |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Recent results of research on time-reversal communication in the deep ocean. |
| Sub Title (in English) | |
| Keyword(1) | phase-conjugate wave |
| Keyword(2) | time-reversal wave |
| Keyword(3) | underwater acoustic communication |
| Keyword(4) | adaptive equalization |
| Keyword(5) | at-sea experiments |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Takuya Shimura |
| 1st Author's Affiliation | Japan Agency for Marine-Earth Science and Technology (JAMSTEC) |
| 2nd Author's Name | Hiroshi Ochi |
| 2nd Author's Affiliation | Japan Agency for Marine-Earth Science and Technology (JAMSTEC) |
| 3rd Author's Name | Yoshitaka Watanabe |
| 3rd Author's Affiliation | Japan Agency for Marine-Earth Science and Technology (JAMSTEC) |
| 4th Author's Name | Takehito Hattori |
| 4th Author's Affiliation | Nippon Marine Enterprise, Ltd (NME) |
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| Speaker | Author-1 |
| Date Time | 2009-08-28 13:00:00 |
| Presentation Time | 25 minutes |
| Registration for | US |
| Paper # | US2009-29 |
| Volume (vol) | vol.109 |
| Number (no) | no.180 |
| Page | pp.1-5 |
| #Pages | 5 |
| Date of Issue | 2009-08-21 (US) |
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