Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
RCS, SR, SRW (Joint) |
2024-03-13 13:00 |
Tokyo |
The University of Tokyo (Hongo Campus), and online (Primary: On-site, Secondary: Online) |
Effects of the Doppler shift on synchronization in underwater acoustic communication Mitsuyasu Deguchi, Yukihiro Kida, Yoshitaka Watanabe, Takuya Shimura (JAMSTEC) RCS2023-259 |
In underwater acoustic communication, the Doppler shifts can degrade demodulation performance more severely than that in... [more] |
RCS2023-259 pp.30-35 |
UWT (2nd) |
2024-01-29 15:15 |
Tokyo |
Tokai University Shinagawa Campus (Primary: On-site, Secondary: Online) |
Influence of electric double layer on low-frequency complex permittivity measurements in sea Hiroshi Yoshida (JAMSTEC) |
[more] |
|
UWT (2nd) |
2024-01-29 16:05 |
Tokyo |
Tokai University Shinagawa Campus (Primary: On-site, Secondary: Online) |
Measurement of Lateral Waves Along Seabed Using Spherical-Electrode Half Sheath Antennas Takashi Kawamura, Takuma Matsushita, Yukio Kaneko, Nobuaki Kawai, Yasuhiro Matsui, Akihiro Horii (Sony Group), Hiroshi Yoshida (JAMSTEC) |
[more] |
|
UWT (2nd) |
2023-11-27 15:50 |
Shiga |
Ritsumeikan University Biwako-Kusatsu Campus (BKC) |
[Invited Lecture]
utilization of Zadoff-Chu signals on underwater acoustic communication
-- improving efficiecy of MIMO communication -- Mitsuyasu Deguchi, Yukihiro Kida, Yoshitaka Watanabe, Takuya Shimura (JAMSTEC) |
[more] |
|
RCC, ISEC, IT, WBS |
2023-03-15 13:50 |
Yamaguchi |
(Primary: On-site, Secondary: Online) |
A Study on Average Bit Error Rate Analysis of Underwater Optical Camera Communication Using RGB-LED Array Kazune Yokoo, Yusuke Kozawa, Hiromasa Habuchi (Ibaraki Univ.), Takao Sawa (JAMSTEC) IT2022-122 ISEC2022-101 WBS2022-119 RCC2022-119 |
In recent years, underwater visible light communication (UVLC) is being considered to realize large-capacity underwater ... [more] |
IT2022-122 ISEC2022-101 WBS2022-119 RCC2022-119 pp.343-348 |
SR, UWT (Joint) |
2023-01-26 14:40 |
Tokyo |
Takanawa Campus, Tokai Univ. (Primary: On-site, Secondary: Online) |
[Invited Talk]
Evaluation of Permittivity and Antenna Design in Seawater Hiroshi Yoshida (JAMSTEC) |
[more] |
|
MICT, WBS |
2022-07-25 09:30 |
Okayama |
Okayama Prefectural University |
[Poster Presentation]
A Study on Generated Image Analysis for Full-Color Image Sensor Based Underwater Visible Light Communication Kazune Yokoo, Yusuke Kozawa, Hiromasa Habuchi (Ibaraki Univ.), Takao Sawa (JAMSTEC) WBS2022-18 MICT2022-18 |
Recently, Underwater Visible Light Communication (UVLC) has been attracting attention as a short-range underwater wirele... [more] |
WBS2022-18 MICT2022-18 pp.6-11 |
MWPTHz, EST, MW, EMT, OPE, IEE-EMT [detail] |
2022-07-19 14:15 |
Hokkaido |
Asahikawa Civic Culture Hall (Primary: On-site, Secondary: Online) |
Projection of Heat-related Morbidity in Future Based on a Large Ensemble of Climate Change Haruto Ueta (NITech), Shiori Sugimoto (JAMSTEC), Sachiko Kodera, Akimasa Hirata (NITech) EMT2022-16 MW2022-40 OPE2022-19 EST2022-17 MWPTHz2022-14 |
The large number of patients with heat-related illness has been transported by ambulance every summer. Further increase ... [more] |
EMT2022-16 MW2022-40 OPE2022-19 EST2022-17 MWPTHz2022-14 pp.46-51 |
NC, NLP (Joint) |
2021-01-21 10:30 |
Online |
Online |
Phase reduction method for analysis of coupling between coupled oscillator groups exhibiting collective oscillations with statistical approach Takahiro Arai (Kyoto Univ.), Yoji Kawamura (JAMSTEC), Toshio Aoyagi (Kyoto Univ.) NLP2020-42 |
In this paper, we extended the method which extracts a phase description of weakly coupled limit-cycle oscillators from ... [more] |
NLP2020-42 pp.13-18 |
RCS, AP, UWT (Joint) |
2020-11-26 11:20 |
Online |
Online |
[Invited Lecture]
Adaptive digital down-conversion for underwater acoustic communication Mitsuyasu Deguchi, Yukihiro Kida, Takuya Shimura (JAMSTEC) AP2020-86 RCS2020-125 |
In underwater acoustic communication, effects of the Doppler shift is much larger than that of the radio communication i... [more] |
AP2020-86 RCS2020-125 pp.72-77(AP), pp.87-92(RCS) |
RCS, AP, UWT (Joint) |
2020-11-27 11:45 |
Online |
Online |
Fundamental examination of technology of underwater multi-stages contact-less power and signal transfer Junya Ishiwata, Tomoya Inoue (JAMSTEC), Ikuo Awai (Ryutech) |
[more] |
|
WPT |
2020-03-07 10:30 |
Kyoto |
(Cancelled but technical report was issued) |
Coils and ferrites at the junction of a super multi-stage non-contact power supply drill pipe Examination of integrated structure Hidemasa Sawai, Toshio Ishizaki (Ryukoku Univ), Tomoya Inoue, Junya Ishiwata (JAMSTEC), Ikuo Awai (Ryutech) WPT2019-74 |
[more] |
WPT2019-74 pp.89-94 |
AP |
2019-12-12 13:40 |
Tokyo |
Kikai-Shinko-Kaikan Bldg. |
A Consideration on a Reception of Electromagnetic Wave Signals at the Sea Level in the Shallow Sea Area Nozomu Ishii (Niigata Univ.), Masaharu Takahashi, Ryosuke Kato (Chiba Univ.), Qiang Chen (Tohoku Univ.), Hiroshi Yoshida (JAMSTEC) AP2019-143 |
In order to estimate the position of a diver in a submarine search at the time of a flood accident in shallow water, we ... [more] |
AP2019-143 pp.7-12 |
AP, RCS (Joint) |
2019-11-22 15:05 |
Saga |
Saga Univ. |
[Invited Lecture]
Study on Underwater Acoustic Communication using Time-Reversal DFE
-- Application for MIMO and Multiuser Communication -- Takuya Shimura, Mitsuyasu Deguchi, Yukihiro Kida, Yoshitakawa Watanabe (JAMSTEC) AP2019-139 RCS2019-234 |
In underwater acoustic communication, effects of multipath interferences and Doppler shift are much larger than those in... [more] |
AP2019-139 RCS2019-234 pp.181-186(AP), pp.175-180(RCS) |
CCS |
2019-11-14 13:00 |
Hyogo |
Kobe Univ. |
Phase reduction approach to spatiotemporal synchronization of traveling and oscillating convection Yoji Kawamura (JAMSTEC) CCS2019-24 |
We formulate a theory for the phase reduction of traveling and oscillating thermal convection in a two-dimensional incom... [more] |
CCS2019-24 pp.1-4 |
EMCJ, MW, EST, IEE-EMC [detail] |
2019-10-24 12:55 |
Miyagi |
Tohoku Gakuin University(Conf. Room 2, Eng. Bldg. 1) |
A Study on Heatstroke Risk Assessment in Urban Space Toshiki Kamiya, Akimasa Hirata (NITech), Ryo Onishi (JAMSTEC) EMCJ2019-43 MW2019-72 EST2019-51 |
It is essential to analyze the time evolution of body temperature elevation and water loss for evaluating the risk of he... [more] |
EMCJ2019-43 MW2019-72 EST2019-51 pp.39-44 |
WPT, EE (Joint) |
2019-10-10 14:40 |
Shiga |
Ryukoku Extension Center, Ryukoku University |
Contactless Power Transfer in a Drill Pipe with Close-Coupled Coils Hidemasa Sawai, Toshio Ishiaki (Ryukoku Univ), Tomoya Inoue, Junya Ishiwata (JAMSTEC), Ikuo Awai (Ryutech) WPT2019-41 |
[more] |
WPT2019-41 pp.79-82 |
MW, AP (Joint) |
2019-09-19 13:35 |
Kanagawa |
JAXA (Sagamihara) |
Measurement of Phase Distribution between Small Dipole Antennas Immersed in Simulated Sea Water Using Pseudo Scale Model Nozomu Ishii (Niigata Univ.), Masaharu Takahashi, Ryosuke Kato (Chiba Univ.), Qiang Chen (Tohoku Univ.), Hiroshi Yoshida (JAMSTEC) AP2019-72 |
The authors deal with the problem of position estimation in the sea using electromagnetic waves as one of the applicatio... [more] |
AP2019-72 pp.13-18 |
US |
2019-08-28 15:45 |
Tokyo |
|
Research and Development of High-Rate Underwater Acoustic Communication
-- Research on Time-Reversal MIMO Acoustic Communication and Development of Acoustic Communication System for Manned Submersible SHINKAI6500 -- Takuya Shimura, Mitsuyasu Deguchi, Yukihiro Kida, Yoshitaka Watanabe (JAMSTEC) US2019-43 |
In underwater acoustic communication, effects of multipath interferences and Doppler shift are much larger than those in... [more] |
US2019-43 pp.33-38 |
AP |
2019-08-22 15:00 |
Hokkaido |
Hokkai-Gakuen Univ. |
3D Pattern Measurement of an Underwater Dipole Antenna Using Pseudo Scale Model Nozomu Ishii (Niigata Univ.), Masaharu Takahashi (Chiba Univ.), Qiang Chen (Tohoku Univ.), Hiroshi Yoshida (JAMSTEC) AP2019-61 |
Electromagnetic field distribution in the sea should be essentially measured when developing a system that uses electrom... [more] |
AP2019-61 pp.73-78 |