| Presentation | 2022-10-14 Fundamental Study of Underwater Acoustic Communication Using a Bidirectional Retrodirective System Takahiro Ishikawa, Shingo Yoshizawa, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Beamforming is a technique that concentrates wave energy in a specific direction using multiple element arrays. It can expand the communication transmission range and reduce multipath interference in underwater acoustic communication. We studied a retrodirective system that estimates the direction of arrival (DOA) from a sound wave in the other communication terminal and controls the transmission direction in the opposite direction in the previous work. This study proposes a bidirectional retrodirective system that estimates the DOA and controls the transmission direction at each terminal. In the verification of the proposed method, we evaluated the communication characteristics of the line-of-sight (LOS) and non-line-of-sight (NLOS) environments by simulation and conducted actual measurement tests in the swimming pool. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Underwater Acoustic Communication / Beamforming / Direction of Arrival Estimation / Retrodirective System |
| Paper # | SIS2022-20 |
| Date of Issue | 2022-10-06 (SIS) |
| Conference Information | |
| Committee | SIS / ITE-BCT |
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| Conference Date | 2022/10/13(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Hachinohe Institute of Technology |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Tomoaki Kimura(Kanagawa Inst. of Tech.) / 斎藤 恭一(NHK) |
| Vice Chair | Naoto Sasaoka(Tottori Univ.) / Hakaru Tamukoh(Kyushu Inst. of Tech.) / 村田 英一(山口大) / 斉藤 一(テレビ東京) |
| Secretary | Naoto Sasaoka(NTT) / Hakaru Tamukoh(Kansai Univ.) / 村田 英一(千葉大) / 斉藤 一 |
| Assistant | Yoshiaki Makabe(Kanagawa Inst. of Tech.) / Yosuke Sugiura(Saitama Univ.) / 神原 浩平(NHK) / 鈴村 高幸(テレビ朝日) / 松﨑 敬文(NHK) / 宮野 真由子(東芝インフラシステムズ) / 大内 幹博(パナソニック) / 榎 芳栄(TBSテレビ) / 水本 哲弥(日本学術振興会) |
| Paper Information | |
| Registration To | Technical Committee on Smart Info-Media Systems / Technical Group on Broadcasting Technology |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Fundamental Study of Underwater Acoustic Communication Using a Bidirectional Retrodirective System |
| Sub Title (in English) | |
| Keyword(1) | Underwater Acoustic Communication |
| Keyword(2) | Beamforming |
| Keyword(3) | Direction of Arrival Estimation |
| Keyword(4) | Retrodirective System |
| 1st Author's Name | Takahiro Ishikawa |
| 1st Author's Affiliation | Kitami Institute of Technology(Kitami Inst. of Tech.) |
| 2nd Author's Name | Shingo Yoshizawa |
| 2nd Author's Affiliation | Kitami Institute of Technology(Kitami Inst. of Tech.) |
| Date | 2022-10-14 |
| Paper # | SIS2022-20 |
| Volume (vol) | vol.122 |
| Number (no) | SIS-209 |
| Page | pp.pp.49-52(SIS), |
| #Pages | 4 |
| Date of Issue | 2022-10-06 (SIS) |