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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 141  /  [Next]  
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
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