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Paper Abstract and Keywords
Presentation 2022-10-14 11:25
Fundamental Study of Underwater Acoustic Communication Using a Bidirectional Retrodirective System
Takahiro Ishikawa, Shingo Yoshizawa (Kitami Inst. of Tech.)
Abstract (in Japanese) (See Japanese page) 
(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) 
(in English) Underwater Acoustic Communication / Beamforming / Direction of Arrival Estimation / Retrodirective System / / / /  
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Conference Information
Committee BCT IEICE-SIS  
Conference Date 2022-10-13 - 2022-10-14 
Place (in Japanese) (See Japanese page) 
Place (in English) Hachinohe Institute of Technology 
Topics (in Japanese) (See Japanese page) 
Topics (in English) System Implementation Technology, Short Range Wireless Systems, Smart Multimedia Systems, Broadcasting Technology, etc. 
Paper Information
Registration To IEICE-SIS 
Conference Code 2022-10-SIS-BCT 
Language Japanese 
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.)
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Speaker Author-1 
Date Time 2022-10-14 11:25:00 
Presentation Time 20 minutes 
Registration for IEICE-SIS 
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Volume (vol) vol.46 
Number (no)  
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