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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 23  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
SANE, SAT
(Joint)
2023-03-03
15:20
Okinawa
(Primary: On-site, Secondary: Online)
Low-Complexity Multiuser Detection of Multiple Collided Packets in Space-based AIS Experiments
Kohei Nozaki, Yuyuan Chang, Kazuhiko Fukawa (Tokyo Tech), Daichi Hirahara (JAXA) SAT2022-71
Space-based automatic identification system (AIS) is employed to receive the AIS packets from ships on the high seas. Ho... [more] SAT2022-71
pp.87-92
SAT, SANE
(Joint)
2022-02-24
17:05
Online Online Multiuser Detection of Collided AIS Packets using Iterative Channel Estimation
Kohei Nozaki, Yuyuan Chang, Kazuhiko Fukawa (Tokyo Tech), Daichi Hirahara (JAXA) SAT2021-61
The space-based automatic identification system (AIS) has attracted attention because the satellites can receive AIS sig... [more] SAT2021-61
pp.51-56
SANE, SAT
(Joint)
2021-02-19
14:55
Online Online Signal Decomposition of Collided Packets Employing Highly Accurate Estimation of Doppler Frequencies in Space-based AIS
Kohei Nozaki, Yuwa Takanezawa, Yuyuan Chang, Kazuhiko Fukawa (Tokyo Tech), Daichi Hirahara (JAXA) SAT2020-38
The automatic identification system (AIS) aims at communications among ships or between base stations on seaside and shi... [more] SAT2020-38
pp.48-53
SAT, SANE
(Joint)
2020-02-19
14:15
Okinawa   Separate Detection of Collided Packets using Parallel Interference Cancellation over Space-based AIS Channels
Yuwa Takanezawa, Yuyuan Chang, Kazuhiko Fukawa (Tokyo Tech.), Daichi Hirahara (JAXA) SAT2019-73
Recently, satellite-based automatic identification system (AIS) has attracted much attentions because it can receive AIS... [more] SAT2019-73
pp.33-38
SAT, SANE
(Joint)
2020-02-20
15:05
Okinawa   Consideration on Signal Separation System for Space based AIS Experiment 3 (SPAISE3)
Koji Nishimura (ROIS), Daichi Hirahara (JAXA) SANE2019-117
 [more] SANE2019-117
pp.103-106
SAT 2019-10-10
14:20
Fukuoka JR HAKATA CITY {10F RoomA+B} Experimental Study of External Interference for Weak Spike Noise Observed with Satellite AIS
Daichi Hirahara (JAXA) SAT2019-50
The Japan Aerospace Exploration Agency (JAXA) launched a second space-based Automatic Identification System (AIS), SPace... [more] SAT2019-50
pp.11-13
RCS, SR, SRW
(Joint)
2019-03-07
11:20
Kanagawa YRP Iterative Separate Detection for Collided Packets over Space-based AIS Channels
Seiya Shimizu, Yuyuan Chang, Kazuhiko Fukawa (Tokyo Tech), Daichi Hirahara (JAXA) RCS2018-316
Employing satellites makes Automatic Identification System (AIS) signals available across the open oceans. As such a sat... [more] RCS2018-316
pp.181-186
SANE, SAT
(Joint)
2019-02-13
14:00
Kagoshima Tanegashima Island Received signal analysis of SPace based AIS Experiment 2nd (SPAISE2) in the Sea around Japan (Part 5)
Daichi Hirahara, Shuji Shimizu, Junichiro Ishizawa, Shinichi Sobue, Satoko Miura, Shinichi Suzuki (JAXA) SAT2018-69
The Japan Aerospace Exploration Agency (JAXA) launched a second satellite AIS system (SPAISE2 : SPace based AIS Experime... [more] SAT2018-69
pp.69-73
SANE, SAT
(Joint)
2019-02-13
14:25
Kagoshima Tanegashima Island Separation Algorithm for Space based AIS Experiment 3 (SPAISE3)
Koji Nishimura (ROIS), Daichi Hirahara (JAXA) SAT2018-70
 [more] SAT2018-70
pp.75-79
SAT 2018-10-12
09:25
Overseas KARI Received signal analysis of SPace based AIS Experiment 2nd (SPAISE2) in the Sea around Japan (Part 4)
Daichi Hirahara, Shuji Shimizu, Junichiro Ishizawa, Shinichi Sobue, Satoko Miura, Shinichi Suzuki (JAXA) SAT2018-52
 [more] SAT2018-52
pp.51-56
AP 2018-08-23
14:35
Saitama Nippon Inst. of Tech. An initial study for designing VHF compact antennas using the planar metamaterial waveguide for distributed array to an ultra-high performance space-based AIS.
Daichi Hirahara (JAXA) AP2018-74
The Satellite Automatic Identification System (SAT-AIS) service detecting signals of VHF Time Division Multiple Access (... [more] AP2018-74
pp.41-44
AP, SANE, SAT
(Joint)
2018-07-20
11:35
Hokkaido Hokkaido Univ. Received signal analysis of SPace based AIS Experiment 2nd (SPAISE2) in the Sea around Japan (Part 3)
Daichi Hirahara, Shuji Shimizu, Junichiro Ishizawa, Satoko Miura, Shinichi Suzuki (JAXA) AP2018-63 SANE2018-27 SAT2018-22
The Japan Aerospace Exploration Agency (JAXA) launched a second satellite AIS system mounted on DAICHI-2 in 2014. SPAISE... [more] AP2018-63 SANE2018-27 SAT2018-22
pp.125-129(AP), pp.31-35(SANE), pp.67-71(SAT)
RCS, SR, SRW
(Joint)
2017-03-01
16:25
Tokyo Tokyo Institute of Technology Separate Detection of Collided Packets in the Space-based AIS
Takanori Kanzawa, Kazuhiko Fukawa (TokyoTech), Daichi Hirahara (JAXA), Yuyuan Chang (TokyoTech) RCS2016-302
Information of Automatic Identification System (AIS) can be obtained across the open sea by satellites. In Japan, JAXA h... [more] RCS2016-302
pp.79-84
SANE, SAT
(Joint)
2017-02-24
10:10
Chiba Katsuura Hotel Mikazuki Received signal analysis of SPace based AIS Experiment 2nd (SPAISE2) in the Sea around Japan (Part 2)
Daichi Hirahara (JAXA) SAT2016-74
The Japan Aerospace Exploration Agency (JAXA) launched a second satellite AIS system (SPAISE2 : SPace based AIS Experime... [more] SAT2016-74
pp.75-80
AP, SAT, SANE
(Joint)
2016-07-21
14:25
Hokkaido Otaru port marina Received signal analysis of SPace based AIS Experiment 2nd (SPAISE2) in the Sea around Japan
Daichi Hirahara, Shuji Shimizu, Kenichi Komachi, Hideyuki Muramatsu, Junichiro Ishizawa (JAXA/SAOC) SAT2016-18
The Japan Aerospace Exploration Agency (JAXA) launched a second satellite AIS system (SPAISE2 : SPace based AIS Experime... [more] SAT2016-18
pp.39-44
AP, SAT, SANE
(Joint)
2016-07-21
14:50
Hokkaido Otaru port marina Ultra-high Performance Satellite AIS Utilizing Ground-based DBF for Marine Traffic Density Area in the Sea around Japan
Daichi Hirahara (JAXA) SAT2016-19
Space-based AIS is presented as a promising solution to overcome the coverage limitation of ground stations with the pot... [more] SAT2016-19
pp.45-50
AP, SAT, SANE
(Joint)
2016-07-21
15:15
Hokkaido Otaru port marina Estimation for the number of collision packets in the space-based AIS
Takanori Kanzawa, Kazuhiko Fukawa (TokyoTech), Daichi Hirahara (JAXA) SAT2016-20
Automatic Identification System (AIS) information can be obtained across the open sea by the space-based AIS. In Japan, ... [more] SAT2016-20
pp.51-56
RCS, SR, SRW
(Joint)
2015-03-04
10:50
Tokyo Tokyo Institute of Technology Separation and Detection of Collided Packets for Space based Automatic Identification System Experiments
Kensaku Hoshihara, Sei Inoue, Kazuhiko Fukawa, Hiroshi Suzuki (Tokyo Tech), Daichi Hirahara, Naoki Miyashita, Keizo Nakagawa (JAXA) RCS2014-305
 [more] RCS2014-305
pp.23-28
SANE 2013-06-21
15:20
Ibaraki Tsukuba Space Center, JAXA SPAISE1-Review of the first year experiments
Suetsugu Shinohara, Naoki Miyashita, Daichi Hirahara, Hiromasa Yoshimoto, Shiro Yamakawa (JAXA) SANE2013-31
 [more] SANE2013-31
pp.91-95
SANE 2013-06-21
15:45
Ibaraki Tsukuba Space Center, JAXA Propagation Delay Profile of Space-based Automatic Identification System (AIS) Experiment
Daichi Hirahara (JAXA), Yasuhiro Ohikata (Mebius), Atsushi Tomiki, Hiromasa Yoshimoto, Suetsugu Shinohara (JAXA) SANE2013-32
JAXA has the Satellite AIS demonstration experiment named SPAISE1( SPace based AIS Experiment1) which is installed in Sm... [more] SANE2013-32
pp.97-102
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