Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
CAS, CS |
2024-03-14 09:55 |
Okinawa |
|
Effectiveness of Specified Error Constraints in Directivity Design of Two Microphones Miryu Goino, Tsukasa Hidaka, Kenji Suyama (Tokyo Denki Univ.) CAS2023-112 CS2023-105 |
An arbitrary directivity forming method by two microphones using a circuit structure consiting of multiple directivity f... [more] |
CAS2023-112 CS2023-105 pp.6-11 |
SIP, SP, EA, IPSJ-SLP [detail] |
2024-02-29 16:20 |
Okinawa |
(Primary: On-site, Secondary: Online) |
Residual Noise Reduction Based on Sound Source Signal Independence Kai Furusawa, Kenji Suyama (Tokyo Denki Univ.) EA2023-90 SIP2023-137 SP2023-72 |
We have developed a method based on the multiplication of multiple weighted sum circuits output as a directionality form... [more] |
EA2023-90 SIP2023-137 SP2023-72 pp.174-179 |
SIP, SP, EA, IPSJ-SLP [detail] |
2024-02-29 16:20 |
Okinawa |
(Primary: On-site, Secondary: Online) |
Effectiveness of Specified Error for Suppression Section in Directivity Design Tsukasa Hidaka, Kenji Suyama (Tokyo Denki Univ.) EA2023-91 SIP2023-138 SP2023-73 |
In this paper, we propose an approximate directivity design method using MOMO(Multiplication Of Multiple Output) as a di... [more] |
EA2023-91 SIP2023-138 SP2023-73 pp.180-184 |
AP |
2024-02-16 15:00 |
Mie |
Sinfonia Technology Hibiki Hall Ise (Primary: On-site, Secondary: Online) |
[Invited Lecture]
Propagation loss prediction method by machine learning and ray-tracing for indoor environments Takayuki Nakanishi, Kenya Shimizu (MELCO), Kenzaburo Hitomi (MEE), Yasuhiro Nishioka, Yoshio Inasawa (MELCO) AP2023-197 |
Radio propagation estimation is important for improving the stability and reliability of wireless communications. Howeve... [more] |
AP2023-197 pp.50-55 |
EA, US (Joint) |
2023-12-22 13:00 |
Fukuoka |
|
[Poster Presentation]
Measurement of directional characteristics of a small end-fire loudspeaker array structured with a horn loudspeaker and ordinary loudspeakers Mio Shibata, Manabu Okamoto (Sojo Univ.) EA2023-52 |
We are studying a small, low-cost directional loudspeaker system. A horn loudspeaker mainly has strong directivity in th... [more] |
EA2023-52 pp.21-26 |
SRW, SeMI (Joint) |
2023-11-22 09:30 |
Tokyo |
Koganei Campus, Tokyo University of Agriculture and Technology (Primary: On-site, Secondary: Online) |
[Short Paper]
A Study on Port Arrangement of Analog Beamforming Network Using 3-dimensional Luneburg Lens Maki Arai, Mikio Hasegawa (Tokyo Univ. of Science) SRW2023-34 |
In this report, we propose a method to design an input/output-port arrangement using a directivity correlation matrix fo... [more] |
SRW2023-34 p.31 |
MSS, CAS, IPSJ-AL [detail] |
2023-11-16 15:15 |
Okinawa |
|
A Study on Directivity Design of Two Microphones Based on Meta-Strategy Miryu Goino, Kenji Suyama (Tokyo Denki Univ.) CAS2023-67 MSS2023-37 |
In general system of microphone arrays, the number of nulls is strictly limited under the number of microphones. We have... [more] |
CAS2023-67 MSS2023-37 pp.37-41 |
AP, RCS (Joint) |
2023-11-17 09:30 |
Kumamoto |
Kumamoto Prefectural Workers' Welfare Hall (Primary: On-site, Secondary: Online) |
A Study on Null Depth Control using Multiple Null Constrained transmission directivity control for Microwave Wireless Power Transmission Katsutoshi Kawai, Tomoyuki Nakasha, Yuuya Tanaka (Kyocera) AP2023-147 |
In adaptive array transmission, beamforming performance can be improved by controlling the null depth. In microwave wire... [more] |
AP2023-147 pp.86-91 |
NLP, CAS |
2023-10-06 13:40 |
Gifu |
Work plaza Gifu |
A Proposal for Design Method of Directivity with Specified Error Tsukasa Hidaka, Kenji Suyama (Tokyo Denki Univ.) CAS2023-39 NLP2023-38 |
As a method for forming the desired directivity, we propose a method based on multiplication of the outputs of multiple ... [more] |
CAS2023-39 NLP2023-38 pp.37-42 |
SIP |
2023-08-08 09:50 |
Osaka |
Osaka Univ. (Suita) Convention Center (Primary: On-site, Secondary: Online) |
Improvement of Flexibility in Directivity Design by Calculating Approximate Solutions for Multiple Constraints Tsukasa Hidaka, Kenji Suyama (Tokyo Denki Univ.) SIP2023-52 |
We have developed a suppression section forming method in a directivity pattern based on a multiplication of multiple we... [more] |
SIP2023-52 pp.22-27 |
AP |
2023-03-17 09:55 |
Toyama |
Toyama Prefectural Civic Hall (Primary: On-site, Secondary: Online) |
Examination of directivity control method and operation frequency for wireless power transmission in indoor manned environment Tomoyuki Nakasha, Katsutoshi Kawai, Yuuya Tanaka (Kyocera), Mitoshi Fujimoto (Univ. of Fukui) AP2022-242 |
In recent years, beam wireless power transmission(WPT) systems supply energy for targets located on separate places have... [more] |
AP2022-242 pp.49-54 |
SRW, SeMI, CNR (Joint) |
2022-11-25 15:05 |
Tochigi |
Epinard Nasu (Primary: On-site, Secondary: Online) |
[Poster Presentation]
A Study on Base Station Selection Method Employing Antenna Height and User Position in Millimeter-wave Communications Gen Hosoi, Mitsumasa Nitta, Shuhei Saito, Hirofumi Suganuma, Fumiaki Maehara (Waseda Univ.) SRW2022-34 SeMI2022-69 CNR2022-27 |
This report investigates the effectiveness of a low-complexity blockage mitigation method employing information about th... [more] |
SRW2022-34 SeMI2022-69 CNR2022-27 pp.58-59(SRW), pp.74-75(SeMI), pp.43-44(CNR) |
IA, CQ, MIKA (Joint) |
2022-09-16 10:00 |
Hokkaido |
Hokkaido Citizens Actives Center (Primary: On-site, Secondary: Online) |
High efficiency of epidemic communications for drones swarm flight Tatsuya Kurosawa (NIT), Tomotaka Kimura (Doshisha Univ.), Hiroyuki Shimizu, Takefumi Hiraguri (NIT) CQ2022-38 |
In this study, we are developing the pollination system using small drones. This proposed system is use epidemic communi... [more] |
CQ2022-38 pp.80-84 |
AP |
2022-08-19 10:30 |
Tochigi |
Tochigi Prefecture Industrial Center (Primary: On-site, Secondary: Online) |
Adjustment of Patch Antenna Directivity by Designing Edge GND Layout Ryo Komura, Yoshiki Yamada (Murata) AP2022-64 |
In recent years, The 5G application of smartphones has become active, and the number of terminals equipped with millimet... [more] |
AP2022-64 pp.1-5 |
EA, ASJ-H |
2022-08-05 11:00 |
Miyagi |
(Primary: On-site, Secondary: Online) |
A study of arrangement pattern selection method for directivity generation in speaker array Mio Shibata, Manabu Okamoto (Sojo Univ.) EA2022-37 |
We are studying a speaker system that can generate strong unidirectionality by using the principle of boundary surface c... [more] |
EA2022-37 pp.56-61 |
US |
2022-06-30 13:25 |
Osaka |
Kansai University (Senriyama Campus) |
2-D FDTD simulation of moving sound source and receiver with directivity Takao Tsuchiya, Yu Teshima, Shizuko Hiryu (Doshisha Univ.) US2022-13 |
In this paper, moving sound source and receiver with directivity are implemented in the two-dimensional finite differenc... [more] |
US2022-13 pp.19-24 |
DE |
2022-06-25 11:20 |
Tokyo |
Musashino University (Primary: On-site, Secondary: Online) |
Estimating tweet directivity using linguistic features Hidenori Kiyomoto, Kongmeng Liew, Shuntaro Yada, Shoko Wakamiya, Eiji Aramaki (NAIST) DE2022-4 |
With the Covid-19 pandemic, governments and local authorities are often required to provide accurate and prompt informat... [more] |
DE2022-4 pp.19-24 |
AP |
2022-05-19 10:20 |
Hyogo |
Kobe Port Oasis (Primary: On-site, Secondary: Online) |
A Study on Performance Improvement of a Wave Source Location Estimation Technique Based on Received Power Distribution Model Takato Akiyama, Seiryu Okamoto, Yuki Kawai, Ryo Goto (Doshisha Univ.), Satoru Shimizu (ATR/Doshisha Univ.), Hisato Iwai, Shinsuke Ibi (Doshisha Univ.) AP2022-12 |
A wave source location estimation technique based on the received power model has been proposed. In the technique, a mod... [more] |
AP2022-12 pp.7-11 |
MW |
2021-12-17 13:35 |
Kanagawa |
Kawasaki City Industrial Promotion Hall (Primary: On-site, Secondary: Online) |
A Basic Study on RFID Tag Antennas Placed on a Metallic Temporary Equipment for Construction Yuta Sugiyama, Naoki Miyata (TMCIT) MW2021-102 |
In order to use UHF RFID tags for inventory management of temporary construction equipment, it is difficult to transmit ... [more] |
MW2021-102 pp.103-108 |
EST, MW, EMCJ, IEE-EMC [detail] |
2021-10-08 15:45 |
Online |
Online |
Control of Radiation Directivity for Cylindrical Microcavity Laser Takuma Mishima, Seiya Kishimoto, Shinichiro Ohnuki (Nihon Univ.) EMCJ2021-53 MW2021-65 EST2021-55 |
Radiation pattern of the laser that uses the Whispering Gallery Mode (WGM) becomes a rotationally symmetrical, because e... [more] |
EMCJ2021-53 MW2021-65 EST2021-55 pp.129-134 |