| Presentation | 2020-10-01 Experimental Evaluation of Transmit Beamforming Using Retrodirective System in Underwater Acoustic Communication Aoi Nagano, Shingo Yoshizawa, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Beamforming is a technology that concentrates wave energy in a specific direction by using an element array. It enables the extension of the communication range and the reduction of acoustic reflection interference. In transmit beamforming, it is important to match a beam direction to a destination terminal when transmitting a signal. The transmit beamforming method is requested to optimize the transmit beam according to surrounding environments. This study introduces a retrodirective system that estimates direction of arrival (DOA) from a sound wave in destination terminal and controls the transmit beam in the opposite direction. In the underwater acoustic communication test, we evaluated communication performance in line-of-sight and non-line-of-sight conditions and confirmed communication performance of transmit beamforming using the retrodirective system. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Underwater Acoustic Communication / Beamforming / Direction of Arrival Estimation |
| Paper # | SIS2020-18 |
| Date of Issue | 2020-09-24 (SIS) |
| Conference Information | |
| Committee | SIS / ITE-BCT |
|---|---|
| Conference Date | 2020/10/1(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | System Implementation Technology, Short Range Wireless Systems, Smart Multimedia Systems, Broadcasting Technology, etc. |
| Chair | Noriaki Suetake(Yamaguchi Univ.) / Kyoichi Saito(NHK) |
| Vice Chair | Tomoaki Kimura(Kanagawa Inst. of Tech.) / Naoto Sasaoka(Tottori Univ.) |
| Secretary | Tomoaki Kimura(Kindai Univ.) / Naoto Sasaoka(National Inst. of Tech., Ube College) / (NHK) |
| Assistant | Yukihiro Bandoh(NTT) / Soh Yoshida(Kansai Univ.) / Shigeki Shiokawa(Kanagawa Inst. of Tech.) / Shoichiro Sekiguchi(NHK) / Toshiharu Morizumi(NTT) / Toshimitsu Kobayashi(NBN) |
| Paper Information | |
| Registration To | Technical Committee on Smart Info-Media Systems / Technical Group on Broadcasting and Communication Technologies |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Experimental Evaluation of Transmit Beamforming Using Retrodirective System in Underwater Acoustic Communication |
| Sub Title (in English) | |
| Keyword(1) | Underwater Acoustic Communication |
| Keyword(2) | Beamforming |
| Keyword(3) | Direction of Arrival Estimation |
| 1st Author's Name | Aoi Nagano |
| 1st Author's Affiliation | Kitami Institute of Technology(Kitami Inst. Tech.) |
| 2nd Author's Name | Shingo Yoshizawa |
| 2nd Author's Affiliation | Kitami Institute of Technology(Kitami Inst. Tech.) |
| Date | 2020-10-01 |
| Paper # | SIS2020-18 |
| Volume (vol) | vol.120 |
| Number (no) | SIS-176 |
| Page | pp.pp.44-47(SIS), |
| #Pages | 4 |
| Date of Issue | 2020-09-24 (SIS) |