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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 21  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
SANE 2021-05-13
14:30
Online Online Synthetic Aperture Radar Compatible with 100kg Class Satellite and Its Demonstration in Orbit
Hirobumi Saito (Waseda Univ.), Koji Tanaka, Makoto Mita (ISAS/JAXA), Prilando Rizki Akbar, Budhaditya Pyne, Masato Tanaka, Hiromi Watanabe, Naoto Onodera, Ichitaro Arisaka, Toshihiro Obata (Synspective), Kosei Ishimura (Waseda Univ.), Jiro Hirokawa (Tokyo Inst.Tech.) SANE2021-7
Institute of Space and Astronautical Science(ISAS,JAXA) has developed synthetic Aperture Radar (SAR) system that is comp... [more] SANE2021-7
pp.38-43
SAT, SANE
(Joint)
2020-02-19
15:40
Okinawa   Demonstration Experiment on 2.6 Gbps Downlink Communication from Low Earth Orbit Satellite
Hirobumi Saito (JAXA), Tomoki Kaneko (Todai), Hiromi Watanabe (Keio), Noriyuki Kawano, Keishi Murakami, Yoshinori Kunii, Takahisa Tomoda (JAXA), Kei-ichi Hirako (Keio), Shinichi Nakasuka (Todai), Seiko Shirasaka (Keio) SANE2019-106
 [more] SANE2019-106
pp.49-54
SANE 2018-06-22
13:00
Ibaraki Tsukuba Space Center, JAXA X band Synthetic Aperture Radar for 100kg class small satellite -- Result of Engineering Model --
Hirobumi Saito (JAXA), Prilando Rizki Akbar (Keio Univ.), Budhaditya Pyne (U. Tokyo), Jiro Hirokawa (Tokyo Techn.), Koji Tanaka, Koichi Ijichi (JAXA), Hiromi Watanabe (Keio Univ.), Makoto Mita (JAXA), Tomoki Kaneko (U. Tokyo) SANE2018-13
 [more] SANE2018-13
pp.1-6
SANE 2018-06-22
13:25
Ibaraki Tsukuba Space Center, JAXA 1000W X-band microwave GaN solid state power amplifier for small SAR satellite
Hiromi Watanabe (Keio Univ.), Koji Tanaka, Ijichi Koichi, Hirobumi Saito (JAXA), Seiko Shirasaka (Keio Univ.) SANE2018-14
 [more] SANE2018-14
pp.7-12
WIT 2016-07-16
12:35
Yamanashi University of Yamanashi Organization for Information Management The effect of a drawing a picture on a listening a music
Hiromi Watanabe, Chika Kojima, Tsutomu Tanzawa, Shinji Kotani (Univ. of Yamanashi) WIT2016-29
(To be available after the conference date) [more] WIT2016-29
pp.39-40
SAT, SANE
(Joint)
2016-02-16
14:35
Hiroshima Hiroshima Institute of Technology High Power transmitter for X band SAR system on Small satellite
Hiromi Watanabe (UT), Hirobumi Saito (JAXA) SANE2015-109
We are now developing subsystems in order to put our X-band Synthetic Aperture Radar system for 100kg class small satell... [more] SANE2015-109
pp.13-18
SAT, SANE
(Joint)
2016-02-16
15:00
Hiroshima Hiroshima Institute of Technology Evaluation of Nonlinear Phase Distortion in X-band GaAs and GaN Power Amplifiers for Small Satellite Communication and its Effect to Multi-level Modulation
Masafmi Morimoto, Tomoya Fukami, Hiromi Watanabe (UTokyo), Hirobumi Saito (JAXA) SANE2015-110
In this paper, in order to understand AM-PM characteristics, we simulated AM-PM using equivalent circuit of FET. In addi... [more] SANE2015-110
pp.19-24
SAT, SANE
(Joint)
2016-02-16
15:25
Hiroshima Hiroshima Institute of Technology The Experiments of 505 Mbps Downlink Communication from the 50 kg Class Satellite using 64APSK and Future Plans
Tomoya Fukami, Hiromi Watanabe (UTokyo), Atsushi Tomiki, Takahide Mizuno, Hirobumi Saito (JAXA), Naohiko Iwakiri (NICT), Takahiro Shinke, Kaname Kojima (Addnics), Koichi Kawamoto (Kawamoto), Osamu Shigeta, Hitoshi Nunomura (AI Electronics), Yasuaki Kanda (Antenna Giken) SANE2015-111
A high-speed downlink communication system is required to meet various applications for nano/small satellites. Therefore... [more] SANE2015-111
pp.25-30
SANE, SAT
(Joint)
2015-02-18
15:50
Okinawa Okinawaken Shichoson Jichikaikan [Special Talk] On-Orbit Demonstration of the X-band 348 Mbps Communication System for the Nano Satellite: Hodoyoshi-4
Tomoya Fukami, Hiromi Watanabe (UTokyo), Atsushi Tomiki, Takahide Mizuno, Hirobumi Saito (JAXA), Naohiko Iwakiri (NICT), Takahiro Shinke, Kaname Kojima (Addnics), Koichi Kawamoto (Kawamoto), Osamu Shigeta, Hitoshi Nunomura (AI Electronics), Yasuaki Kanda (Antenna Giken) SANE2014-132 SAT2014-58
A high-speed downlink communication system is required to meet various applications for nano/small satellites. Therefore... [more] SANE2014-132 SAT2014-58
pp.25-30(SANE), pp.43-48(SAT)
SANE 2014-10-22
10:00
Overseas Ramada Plaza Melaka, Malacca, Malaysia High speed down link experiment from small satellite Hodoyoshi 4
Hirobumi Saito (JAXA), Tomoya Fukami, Hiromi Watanabe (Univ. of Tokyo), Takahide Mizuno, Atsushi Tomiki (JAXA), Naohiko Iwakiri (NICT) SANE2014-66
A high-speed downlink communications system is required to meet various applications for nano/small satellites. It is es... [more] SANE2014-66
pp.11-16
SAT, SANE
(Joint)
2014-02-21
10:30
Yamaguchi Hotel Kamefuku (Yamaguchi) Ipplication of Small satellite: High speed downlink communication system -- High efficiency GaN-HEMT power amplifier --
Hiromi Watanabe, Tomoya Fukami (Univ. of Tokyo), Hirobumi Saito (JAXA), Naohiko Iwakiri (Univ. of Tokyo), Atsushi Tomiki (JAXA) SANE2013-137
 [more] SANE2013-137
pp.31-36
SANE 2013-12-03
12:05
Overseas VAST/VNSC(2nd Dec.) & Melia Hotel (3rd Dec), Hanoi, Vietnam Development of the X-band High Speed Downlink Transmitter for Nano Satellite
Tomoya Fukami, Hiromi Watanabe (The Univ. of Tokyo), Atsushi Tomiki (JAXA), Naohiko Iwakiri (The Univ. of Tokyo), Hirobumi Saito (JAXA), Shinichi Nakasuka (Tokyo Univ.) SANE2013-102
Recently small satellites start playing important roles in earth observation missions. It, however, is true that small s... [more] SANE2013-102
pp.179-184
SANE 2013-04-25
13:00
Nagano Usuda Deep Space Center, JAXA Evaluation of the X-band High Speed Downlink Transmitter with GaN-HEMT amplifier for Nano Satellite
Tomoya Fukami, Hiromi Watanabe (Univ. of Tokyo), Atsushi Tomiki (JAXA), Naohiko Iwakiri (Univ. of Tokyo), Hirobumi Saito (JAXA), Shinichi Nakasuka (Univ. of Tokyo) SANE2013-1
Recently small satellites start playing important roles in earth observation missions. It, however, is true that small s... [more] SANE2013-1
pp.1-6
SANE 2012-10-11
14:40
Overseas The SONGDO CONVENSIA, Incheon Korea Developments of high-efficiency GaN RF amplifier and pre-distortion technique for nano/small satellite downlink system
Hiromi Watanabe, Tomoya Fukami (Univ. of Tokyo), Atsushi Tomiki, Hirobumi Saito, Naohiko Iwakiri (JAXA) SANE2012-83
A high-speed downlink communication system is required to meet different applications for nano/small satellites. Therefo... [more] SANE2012-83
pp.153-158
SANE 2012-06-29
15:45
Ibaraki Tsukuba Space Center, JAXA Miniaturized Antennas on Small Satellites for the X-Band Downlink Communications
Yasuaki Kanda (Antenna Giken), Hirobumi Saito (JAXA), Hiromi Watanabe (UT), Satoshi Kogiso, Toshiyuki Haga, Syuuishi Okuno, Masamichi Fujita (Antenna Giken) SANE2012-39
The miniaturized antennas for X band down-links which is due to be carried in a small satellite "Hodoyoshi" have been in... [more] SANE2012-39
pp.105-110
SANE 2012-06-29
16:10
Ibaraki Tsukuba Space Center, JAXA Measurement and digital predistortion on high-efficiency GaN based power amplifier for nano/small satellite high-speed communication system
Hiromi Watanabe (Tokyo University), Atsushi Tomiki (JAXA), Naohiko Iwakiri, Tomoya Fukami (Tokyo University), Hirobumi Saito (JAXA), Shinichi Nakasuka (Tokyo University) SANE2012-40
A high-speed downlink communication system is required to meet different applications for nano/small satellites.
Theref... [more]
SANE2012-40
pp.111-116
WIT 2012-05-25
15:15
Niigata Niigata Univ. satellite campus Evaluating of ability of eye-control by MyTobii
Hiromi Watanabe, Shinji Kotani (Yamanashi Univ.) WIT2012-7
The communication system using eye control has been developed for a people wtih generalized locomotor function.The Japan... [more] WIT2012-7
pp.33-38
WIT 2011-01-22
16:15
Kyoto Ritsumeikan Evaluating method of ability of eye-control by MyTobii
Hiromi Watanabe, Kazuhiro Oogi, Yoshihiko Yamamoto, Shinji Kotani (Univ. of Yamanashi) WIT2010-66
Research and development in the communication system using eye control which is a residual function for a people with ge... [more] WIT2010-66
pp.55-58
WIT 2009-07-24
13:30
Yamanashi Univ. of Yamanashi R&D of the Position Estimation Device for the Visually Impaired
Shinji Kotani, Yusuke Hamada, Hiromi Watanabe, Katsuhiro Koyama (Univ. of Yamanashi) WIT2009-52
We have developed a robotic travel aid and some devices that can provide assistance to guide visually impaired. Our robo... [more] WIT2009-52
pp.23-26
ICD, IPSJ-ARC, IPSJ-EMB 2009-01-14
16:30
Osaka Shoushin Kaikan A Low-Power Full-HD H.264 High-Profile Codec Based on a Heterogeneous Multiprocessor Architecture
Kenichi Iwata, Seiji Mochizuki, Motoki Kimura, Tetsuya Shibayama, Fumitaka Izuhara, Hiroshi Ueda (Renesas Tech Corp.), Koji Hosogi, Hiroaki Nakata, Masakazu Ehama (Hitachi Ltd.), Toru Kengaku, Takuichiro Nakazawa, Hiromi Watanabe (Renesas Tech Corp.) ICD2008-148
A video-size-scalable H.264 High-Profile codec including 19 application-specific CPUs for extensibility to multiple stan... [more] ICD2008-148
pp.111-116
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