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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 60  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
ICSS, IPSJ-SPT 2024-03-22
14:30
Okinawa OIST
(Primary: On-site, Secondary: Online)
A Search Method for Fake QR Codes Suitable for Long-Distance Attack Using Laser Irradiation
Dai Itakura, Taiga Manabe, Yuki Kamata, Ayana Oku, Hiroshi Yamamoto, Yoshihisa Takayama, Toshihiro Ohigashi (Tokai Univ.) ICSS2023-96
In this paper, we propose a search method for fake QR codes suitable for long-distance attack using laser irradiation. W... [more] ICSS2023-96
pp.194-200
ICSS, IPSJ-SPT 2024-03-22
14:55
Okinawa OIST
(Primary: On-site, Secondary: Online)
Adversarial Examples with Missing Perturbation Using Laser Irradiation
Daisuke Kosuge, Hayato Watanabe, Taiga Manabe, Yoshihisa Takayama, Toshihiro Ohigashi (Tokai Univ.) ICSS2023-97
In recent years, neural networks have made remarkable progress in the field of image processing and other areas, and the... [more] ICSS2023-97
pp.201-207
UWT
(2nd)
2024-01-29
17:30
Tokyo Tokai University Shinagawa Campus
(Primary: On-site, Secondary: Online)
Confirming the effectiveness of multi-beam transmission underwater turbulence
Taiga Manabe, Naoki Kobayashi, Ayana Oku, Yoshihisa Takayama (Tokai Univ.)
In this paper, we confirm the stabilization of irradiation through multi-beam transmission in underwaterconditions. Base... [more]
UWT
(2nd)
2023-11-27
12:55
Shiga Ritsumeikan University Biwako-Kusatsu Campus (BKC) Confirmation of the effectiveness of multi-beam transmission for application to underwater optical communications
Naoki Kobayashi, Ayana Oku, Taiga Manabe, Yoshihisa Takayama (Tokai Univ)
In this paper, we confirm the effectiveness of multi-beam transmission for application to underwater optical communicati... [more]
ICSS, IPSJ-SPT 2023-03-13
12:50
Okinawa Okinawaken Seinenkaikan
(Primary: On-site, Secondary: Online)
Dynamic Fake QR Code using Invisible Laser Irradiation
Yuki Kamata, Shuya Kawaguchi, Toshihiro Ohigashi, Yoshihisa Takayama (Tokai Univ.) ICSS2022-49
In this paper, we propose a method to generate a fake QR code that can lead to a malicious site at any given time by las... [more] ICSS2022-49
pp.7-12
SR, UWT
(Joint)
2023-01-26
15:10
Tokyo Takanawa Campus, Tokai Univ.
(Primary: On-site, Secondary: Online)
[Invited Talk] Impact of fluctuating paths on optical transmission
Yoshihisa Takayama (Tokai Univ.)
 [more]
RCS, AP, UWT
(Joint)
2022-11-15
15:35
Fukuoka Kyushu University, and Online
(Primary: On-site, Secondary: Online)
[Invited Lecture] Study on Prediction of Received Intensity Fluctuation in Underwater Optical Communication Using Machine Learning
Hideki Takenaka, Shouken Ishii (TMU), Yoshihisa Takayama (TU)
(To be available after the conference date) [more]
SANE 2022-08-18
17:45
Hokkaido  
(Primary: On-site, Secondary: Online)
Optical ground station construction and steady technology acquisition for optical communications between space and ground -- Space optical direct communication technology --
Tatsuya Mukai, Yosuke Hashimoto, Eiichi Mizuta, Tomohiro Araki (JAXA), Yoshihisa Takayama (TU) SANE2022-43
In addition to contemporary radio technologies, space agencies plan to adopt optical technologies to realize faster data... [more] SANE2022-43
pp.56-61
CQ, ICM, NS, NV
(Joint)
2021-11-25
11:30
Fukuoka JR Hakata Stn. Hakata EkiHigashi Rental Room
(Primary: On-site, Secondary: Online)
Cloud avoidance network for high-speed optical communications between space and ground -- Space optical direct communication technology --
Tatsuya Mukai (JAXA), Yoshihisa Takayama (TU), Takashi Onoe (TSOL) NS2021-86
Space agencies have ever used contemporary radio technologies for transmissions of a large volume of observation data fr... [more] NS2021-86
pp.13-17
WPT, UWT
(Joint)
2021-11-12
13:30
Online Online Estimation of fluctuation diameter affecting underwater propagating light
Yoshihisa Takayama, Hiroki Yamashita (Tokai Univ.), Seigo Takahashi (Trimatiz)
The validity of the approach to estimate the size of the fluctuation in water affecting to the propagation of light is e... [more]
SANE, SAT
(Joint)
2021-02-18
11:00
Online Online Network operation measures by a laser ground network planning (LGNP) -- Space optical direct communication technology --
Tatsuya Mukai (JAXA), Yoshihisa Takayama (TU), Takashi Asama, Nobuhiro Yagi (TIS) SANE2020-58
Based on OICETS experimental ground system and the IOAG/OLSG report, JAXA conducts the research and development of uniqu... [more] SANE2020-58
pp.1-6
SAT, SANE
(Joint)
2020-02-19
15:15
Okinawa   Development and operations of a transportanble optical ground station (TOGS) for space optical direct communications -- Space optical communications technology --
Tatsuya Mukai (JAXA), Yoshihisa Takayama (TU), Tomohiro Araki (JAXA) SANE2019-105
The data volumes of space communication services connected between space and ground tends to increase more and more and ... [more] SANE2019-105
pp.43-48
RCS, IN, NV
(Joint)
2019-05-16
15:10
Kanagawa Keio University [Invited Talk] Research trend of spatial optical communications with expanding applications
Yoshihisa Takayama (Tokai Univ.) IN2019-7 RCS2019-28
A variety of applications of free-space laser propagation such as measurements, communications, energy transmissions, et... [more] IN2019-7 RCS2019-28
pp.23-28(IN), pp.35-40(RCS)
SAT 2015-10-07
15:55
Osaka Osaka University Nakanoshima Center Initial Overview of Satellite-ground Laser Communication Experiment using Small Optical TrAnsponder (SOTA)
Yasushi Munemasa, Hideki Takenaka, Dimitar Kolev, Naohiko Iwakiri, Maki Akioka, Yoshisada Koyama, Hiroo Kunimori, Yoshihisa Takayama, Morio Toyoshima (NICT) SAT2015-32
Small Optical TrAnsponder (SOTA) has been launched and injected into 650 km-SSO on 24th May 2014, which is developed by ... [more] SAT2015-32
pp.75-79
SAT 2015-10-07
16:20
Osaka Osaka University Nakanoshima Center A Proposal of Beaconless Ground to Satellite Laser Communication System by Using GPS Information
Keiichi Yano (SIT), Yoshihisa Takayama (Tokai Univ.), Hiroo Kunimori (NICT), Koichi Gyoda (SIT) SAT2015-33
In a space laser communication between a ground station and a satellite, a beacon laser had been used in acquisition of ... [more] SAT2015-33
pp.81-85
SANE, SAT
(Joint)
2015-02-19
14:30
Okinawa Okinawaken Shichoson Jichikaikan Integration, Final Test and Orbital Initial Operation of SOTA onboard Small Satellite SOCRATES
Maki Akioka, Yoshihisa Takayama, Yoshisada Koyama (NICT), Akira Miyake, Mamoru Yamada (AES) SAT2014-66
SOTA is a experimantal small optical communication instrument for orbital demonstration of 1.5 microns laser communicati... [more] SAT2014-66
pp.91-95
SAT 2014-10-24
11:00
Overseas Hae-un-dae Grand Hotel, Busan, Korea Application of DIMM system to satellite tracking
Tomohiro Watanabe (Tokyo Metropolitan Univ.), Yoshihisa Takayama, Hiroo Kunimori (NICT), Hajime Fukuchi (Tokyo Metropolitan Univ.) SAT2014-43
We study a possibility to share a single camera for both tracking of a received light and measuring atmosphere influence... [more] SAT2014-43
pp.113-116
CAS, SIP, MSS, VLD, SIS [detail] 2014-07-09
16:40
Hokkaido Hokkaido University Dynamic wavefront compensation of signal beam in optical satellite communication system using phase conjugation technique
Kaori Nishimaki, Atsushi Okamoto, Atsushi Shibukawa, Akihisa Tomita (Hokkaido Univ.), Yoshihisa Takayama (NICT) CAS2014-18 VLD2014-27 SIP2014-39 MSS2014-18 SIS2014-18
We propose an optical satellite communication system which can dynamically compensate the signal beam wavefront using ph... [more] CAS2014-18 VLD2014-27 SIP2014-39 MSS2014-18 SIS2014-18
pp.87-92
SAT, WBS
(Joint)
2014-05-15
17:05
Aichi Nagoya Institute of Technology [Special Talk] Status and plans of space laser communications
Yoshihisa Takayama (NICT) WBS2014-4 SAT2014-6
Demonstrations on satellite laser communications are summarized. Besides, project plans of space agencies and the recent... [more] WBS2014-4 SAT2014-6
pp.19-23(WBS), pp.27-31(SAT)
SAT 2013-10-24
13:25
Fukuoka IP CITY HOTEL Fukuoka On very small satellite mission SOCRATES for space optical communication experiment
Maki Akioka, Yoshihisa Takayama, Yoshisada Koyama (NICT), Akira Miyake, Mamoru Yamada (AES) SAT2013-36
We are developing very small satellite mission SOCRATES (Space Optical Communication Research Advanced Technology Satell... [more] SAT2013-36
pp.33-37
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