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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| AP (2nd) |
2016-03-01 10:25 |
Overseas | Telecommunications University, Nha Trang, Vietnam | LED visible light communication using 16-element LED array and 120-fps CMOS image sensor in rolling shutter mode Shota Mizuno, Tomoki Kondo, Ryotaro Kitaoka, Ryo Ito, Takahiro Asai, Nguyen Thi Nguyen, Wataru Chujo (Meijo Univ) |
In order to increase the symbol rate of the image-sensor-based visible light communication, 120-fps CMOS image sensor in... [more] | |
| RCC, ITS, WBS | 2015-12-17 13:30 |
Okinawa | Okinawa Industry Support Center | [Poster Presentation]
Flicker-free and EVM performance of LED visible light communication with low-frame-rate CMOS camera Ryotaro Kitaoka, Tomoki Kondo, Wataru Chujo (Meijo Univ.)  WBS2015-54 ITS2015-26 RCC2015-56 |
Human eye recognizes LED lighting as flicker due to low symbol rate performance of visible light communication with a lo... [more] | WBS2015-54 ITS2015-26 RCC2015-56 pp.85-90 |
| WBS, SAT (Joint) |
2015-05-28 10:20 |
Tokyo | Tokyo City Univ. (Setagaya Campus) | Improvement of synchronous speed for LED visible light communication with low-frame-rate camera Tomoki Kondo, Ryoutaro Kitaoka, Naoaki Kawagita, Kouichi Tomomatsu, Nguyen Thi Nguyen, Wataru Chujo (Meijo Univ.) WBS2015-1 |
Synchronous speed of LED visible light communication using CCD or CMOS camera to a receiver is limited by the frame rate... [more] | WBS2015-1 pp.1-6 |
| AP, SAT (Joint) |
2014-07-24 16:00 |
Gifu | Gero Citizen Hall | [Tutorial Lecture]
Diversity techniques to compensate rain attenuation for millimeter-wave satellite communications Wataru Chujo (Meijo Univ.), Takeshi Manabe (Osaka Pref. Univ.), Shinichi Yamamoto (NICT) AP2014-58 SAT2014-13 |
We introduce diversity techniques to compensate degradation of the satellite communication quality due to rainfall atten... [more] | AP2014-58 SAT2014-13 pp.57-60(AP), pp.7-10(SAT) |
| AP (2nd) |
2014-05-15 - 2014-05-16 |
Ishikawa | The Kanazawa Theatre | [Poster Presentation]
Frequency Accuracy of Incoherently Synthesized Microwave Signals by Optical Beats Tomohiro Usami, Naresh Tripathi, Wataru Chujo (Meijo Univ.) |
Two continuous microwave signals were incoherently synthesized by two optical beats for the enhancement of the microwave... [more] | |
| SAT, SANE (Joint) |
2012-02-16 13:00 |
Mie | Analysis of Ka- and Ku-band satellite availability and frequency diversity during rain using duration time Takuya Teramoto, Wataru Chujo (Meijo Univ.), Takeshi Manabe (Osaka Prefecture Univ.), Shinichi Yamamoto (NICT) SAT2011-65 |
Availability and communication capacity of Ka- and Ku-band satellites during rain using duration time were analyzed. Fir... [more] | SAT2011-65 pp.1-6 |
|
| AP, SAT (Joint) |
2010-07-22 11:15 |
Hokkaido | Kitami Inst. Tech. | An Improvement of the Accurate Estimation Scheme of 1-min Rainfall Rate Statistics from the 1-min Rainfall Data Provided by the Japan Meteorology Agency Ryohei Jozaki, Takeshi Manabe (Osaka Prefecture Univ.), Shinichi Yamamoto (NICT), Wataru Chujo (Meijo Univ.) AP2010-53 |
It is important to predict rain attenuation statistics in designing wireless communication links. In predicting rain att... [more] | AP2010-53 pp.87-92 |
| MW | 2009-06-30 14:45 |
Aichi | Nagoya Institute of Technology | Microwave phase accuracy of optically controlled phase shifter for array antenna Kenichi Yamaguchi, Daiki Takeuchi, Wataru Chujo (Meijo Univ.), Shinichi Yamamoto (NICT), Yahei Koyamada (Ibaraki Univ.) MW2009-26 |
We demonstrated highly accurate and very stable phase characteristics of microwave/millimeter-wave phase shifter for opt... [more] | MW2009-26 pp.41-44 |
| EMCJ | 2008-12-19 09:55 |
Gifu | Gifu Univ. | Radiation pattern control of array antenna by optical wavelength control Takashi Kano, Kenichi Yamaguchi, Wataru Chujo (Meijo Univ.), Yahei Koyamada (Ibaraki Univ.) EMCJ2008-88 |
In measurement of electromagnetic field distribution using optical electric field sensor, if sensor array with variable ... [more] | EMCJ2008-88 pp.13-17 |
| OPE, EMT, MW | 2008-07-24 10:50 |
Hokkaido | [Invited Talk]
Experimental study of millimeter-wave optically controlled array antenna sharing optical phase shifters for transmission and reception Wataru Chujo (Meijo Univ.), Wataru Ohuchi (Ibaraki Univ.), Yoshiyuki Fujino (NICT), Yahei Koyamada (Ibaraki Univ.) MW2008-51 OPE2008-34 |
We have carried out the experiments of WDM-based optically controlled array antenna with wideband true-time-delay charac... [more] | MW2008-51 OPE2008-34 pp.25-30 |
|
| AP | 2008-04-17 13:50 |
Osaka | Osaka Electro-Communication University | Experimental evaluation of 20-40 GHz true-time-delay characteristics for receiving optically controlled multibeam array antenna Wataru Chujo (Meijo Univ.), Wataru Ohuchi (Ibaraki Univ.), Yoshiyuki Fujino (NICT), Yahei Koyamada (Ibaraki Univ.) AP2008-6 |
In addition to the experiments of WDM-based optically controlled transmitting array antenna we have ever studied, optica... [more] | AP2008-6 pp.29-32 |
| OPE, OFT | 2008-03-07 15:45 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Experimental study on applicability of optical fiber to optically controlled array antenna Wataru Chujo (NICT), Wataru Ohuchi (Ibaraki Univ.), Yoshiyuki Fujino (NICT), Yahei Koyamada (Ibaraki Univ.) OFT2007-72 OPE2007-191 |
Research of optically controlled, microwave/millimeter-wave phased array antenna consists of optical feed circuit is cur... [more] | OFT2007-72 OPE2007-191 pp.57-60 |
| SANE, SAT (Joint) |
2008-02-28 14:55 |
Ibaraki | Kashima Space Research Center (NICT) | Experimental Study of millimeter-wave optically controlled array antenna sharing with Ku- and Ka-band frequencies Wataru Chujo (NICT), Wataru Ohuchi (Ibaraki Univ.), Yoshiyuki Fujino (NICT), Yahei Koyamada (Ibaraki Univ.) SAT2007-62 |
Research of millimeter-wave satellite communications is currently under development to realize broadband satellite commu... [more] | SAT2007-62 pp.7-10 |
| AP | 2008-02-07 10:55 |
Tokyo | NHK | Experimental study of beam pointing accuracy of WDM based optically controlled array antenna Wataru Chujo (NICT), Wataru Ohuchi (Ibaraki Univ.), Yoshiyuki Fujino (NICT), Yahei Koyamada (Ibaraki Univ.) AP2007-164 |
WDM-based optically controlled array antenna with wideband true-time-delay characteristics is currently under developmen... [more] | AP2007-164 pp.7-10 |
| SANE, SAT (Joint) |
2006-12-22 14:50 |
Kagoshima | NICT(Kashima) | Phase control experiments of 20 GHz optically controlled phased array antenna using wavelength dispersion of an optical fiber Wataru Ohuchi (Ibaraki Univ.), Wataru Chujo, Yoshiyuki Fujino (NICT), Yahei Koyamada (Ibaraki Univ.) SAT2006-52 |
Microwave phase control method using wavelength dispersion of an optical fiber is proposed in order to realize large-sca... [more] | SAT2006-52 pp.13-18 |
| SAT, WBS (Joint) |
2006-06-16 15:40 |
Shizuoka | Numazu Industry Promotion Plaza | The trend of millimeter wave mobile satellite communication Shinichi Yamamoto, Wataru Chujo (NICT), Akio Iso (MCC), Motoo Mizusawa, Takashi Katagi, Shin-ichi Betsudan, Tetsuo Hirota (KIT), Fujio Akiyama (MCC), Nobuyshi Imura, Hiromasa Nakaguro (MELCO), Keisuke Ozawa, Hidehiko Tamaoki (IHI) SAT2006-11 |
[more] | SAT2006-11 pp.19-24 |
| SAT | 2006-02-17 16:55 |
Ishikawa | Kanazawa Institute of Technology | Proposal of Millimeter Waves Mobile (MWM)Satellite Communications Systems
-- Simpler, Better and Faster MWM Satcom System experiments -- Shinichi Yamamoto, Wataru Chujo (NICT), Akio Iso (MCC), Motoo Mizusawa, Takashi Katagi, Shin-ichi Betsudan, Tetsuo Hirota (KIT), Hisaaki Sasaki (MCC), Nobuyoshi Imura, Hiromasa Nakaguro (MELCO), Keisuke Ozawa, Hidehiko Tamaoki (IHI) |
[more] | SAT2005-60 pp.61-66 |
| SAT, WBS (Joint) |
2005-06-24 10:50 |
Shizuoka | Numazu Industry Promotion Plaza | Proposal of Milimeter Waves Mobile Satellite Communicatios Experiments
-- Simpler, Better and Faster Satellite Development -- Shinichi Yamamoto, Wataru Chujo (NICT), Akio Iso (MCC), Motoo Mizusawa, Takashi Katagi, Shin-ichi Betsudan, Tetsuo Hirota (KIT), Hisaaki Sasaki (MCC), Nobuyoshi Imura, Hiromasa Nakaguro (MELCO), Keisuke Ozawa, Hidehiko Tamaoki (IHI) |
[more] | SAT2005-6 pp.1-6 |
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