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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 28  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
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
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
RCS, SAT
(Joint)
2015-08-17
11:45
Fukuoka Fukuoka Univ. Demonstration of Image transmission using Small Optical TrAnsponder (SOTA)
Hideki Takenaka, Maki Akioka, Yoshisada Koyama, Kolev Dimitar, Yasushi Munemasa, Naohiko Iwakiri, Hiroo Kunimori (NICT), Eiji Okamoto (NIT), Morio Toyoshima (NICT) SAT2015-12
We promoted a study for the practical use of space optical communication in NICT and developed SOTA is loaded on 50kg-cl... [more] SAT2015-12
pp.7-9
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 2013-12-02
16:50
Overseas VAST/VNSC(2nd Dec.) & Melia Hotel (3rd Dec), Hanoi, Vietnam Hardware implementation and laboratory performances of X-band nano satellite high-speed downlink receiver based on turbo equalizer/decoder
Naohiko Iwakiri (Tokyo Univ.), Hirobumi Saito (JAXA), Shinichi Nakasuka (Tokyo Univ.) SANE2013-93
 [more] SANE2013-93
pp.127-132
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 2013-04-25
13:25
Nagano Usuda Deep Space Center, JAXA Nonlinear channel modeling of GaN HPA with two stage PSB model and its impact on performances of X-band nano-satellite high-speed communication system
Naohiko Iwakiri (Univ. of Tokyo), Hirobumi Saito (JAXA), Shinichi Nakasuka (Univ. of Tokyo) SANE2013-2
 [more] SANE2013-2
pp.7-12
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 2012-10-11
15:00
Overseas The SONGDO CONVENSIA, Incheon Korea Turbo equalizer/decoder performances of nonlinear channels due to different classes of GaN HPAs for X-band nano satellite high-speed downlink system
Naohiko Iwakiri (Univ. of Tokyo), Hirobumi Saito (JAXA), Shinichi Nakasuka (Univ. of Tokyo) SANE2012-71
 [more] SANE2012-71
pp.83-88
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
SANE 2012-04-27
09:40
Nagano Usuda Deep Space Center, JAXA Suggestion for Selection Methods of Pre-distortion with Low Consumption Power Amplifier for High-Speed Communication on Small Satellites
Mitsuhiro Nakadai, Naohiko Iwakiri (Tokyo Univ.), Hirobumi Saito (JAXA) SANE2012-6
Multi-level modulation is useful for Efficient use of frequency band to achieve the high-speed communications on small s... [more] SANE2012-6
pp.29-34
SANE 2012-04-27
10:05
Nagano Usuda Deep Space Center, JAXA Performance Evaluation of X-band Nano Satellite High-Speed Communication System Equipped with Nonlinearity Compensation Techniques
Naohiko Iwakiri (Tokyo Univ.), Hirobumi Saito (JAXA), Shinichi Nakasuka (Tokyo Univ.) SANE2012-7
A high-speed downlink communication system is required to meet different applications for nano/small satellites. Therefo... [more] SANE2012-7
pp.35-40
SANE 2011-10-17
11:40
Overseas Udayana University, Bali, Indonesia Performance Analysis of SCCC Turbo Equalization with Nonlinear Satellite Channel Compensation Techniques for Nano/Small Satellite High-Speed Communication Systems
Naohiko Iwakiri (Univ. of Tokyo), Atsushi Tomiki, Takahide Mizuno, Hirobumi Saito (JAXA), Shinichi Nakasuka (Univ. of Tokyo) SANE2011-66
 [more] SANE2011-66
pp.17-22
SANE 2011-10-18
10:35
Overseas Udayana University, Bali, Indonesia Estimation of Angle of Arrival and Resolvable Multipath Components of an Ultra-Wideband Monopulse Radar
Natsuki Hashimoto, Hiromitsu Aoki (Tokyo Denki Univ.), Naohiko Iwakiri (Univ. of Tokyo), Takehiko Kobayashi (Tokyo Denki Univ.) SANE2011-82
High range resolution is inherently provided with Ka-band ultra-wideband (UWB) vehicular radars. The authors have dev... [more] SANE2011-82
pp.105-110
SANE 2011-04-22
09:45
Nagano Usuda Deep Space Center, JAXA SCCC turbo equalization with nonlinear satellite channel compensation techniques for nano/small satellite high-speed communication system
Naohiko Iwakiri (Tokyo Univ.), Takahide Mizuno, Hirobumi Saito (JAXA), Shinichi Nakasuka (Tokyo Univ.) SANE2011-6
 [more] SANE2011-6
pp.37-42
SANE 2010-11-26
14:50
Kanagawa JAXA Sagamihara campus Evaluation of Nano/Small Satellite High-Speed Communication System and Turbo Equalization for Nonlinear Satellite Channel
Naohiko Iwakiri (Tokyo Univ.), Takahide Mizuno, Hirobumi Saito (JAXA), Shinichi Nakasuka (Tokyo Univ.) SANE2010-121
In recent years, small/nano satellites have been developed by universities and companies to utilize space environments. ... [more] SANE2010-121
pp.25-30
SANE 2010-10-29
09:40
Overseas Ramada Hotel, Jeju-do, Korea Evaluation of a UWB Phase-Comparison Monopulse Short-Range Radar
Hironori Enkouji, Natsuki Hashimoto, Hiromitsu Aoki, Naohiko Iwakiri, Takehiko Kobayashi (Tokyo Denki Univ.) SANE2010-115
Ultra wideband (UWB) vehicular radars, less expensive than conventional millimeter-wave radars, have attracted attention... [more] SANE2010-115
pp.267-272
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