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Shin-ichiro Sakai

  (坂井 真一郎)

Profile Information

Affiliation
Professor, Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency
Degree
博士（工学)(Mar, 2000, 東京大学)
Researcher number
10342619
J-GLOBAL ID
202101019944115931
researchmap Member ID
R000018454
External link

Major Research Interests

 2
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Major Awards

 18
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Papers

 86
  • Ito Takahiro, Ueda Satoshi, Yokota Kentaro, Sakai Shin-ichiro, Sawai Shujiro
    Journal of Guidance, Control, and Dynamics, 25-29, Mar 11, 2025  Peer-reviewed
  • Ishida Takayuki, Fukuda Seisuke, Kariya Kazuki, Kamata Hiroyuki, Takadama Keiki
    Acta Astronautica, 226(P1) 772-781, Nov 13, 2024  Peer-reviewed
  • Shibata Takuma, Ersin Halil, Sakai Shin-ichiro
    Aerospace Science and Technology, 155(P1), Sep 23, 2024  Peer-reviewed
  • Nakamura Tetsuya, Akiyama Hidefumi, Kanaya Shusaku, Miyazawa Yu, Toyota Hiroyuki, Sakai Shin-ichiro
    Journal of Evolving Space Activities, 2, Sep 2, 2024  Peer-reviewed
  • Ueda Satoshi, Ito Takahiro, Sakai Shin-ichiro
    Journal of Evolving Space Activities, 2, Sep 2, 2024  Peer-reviewed
  • Kambayashi Masaru, Ito Takahiro, Sakai Shinichiro
    Transactions of the Japan Society for Aeronautical and Space Sciences, 67(1) 23-31, Jan 4, 2024  Peer-reviewed
  • Toyota Hiroyuki, Miyazawa Yu, Kanaya Shusaku, Kukita Akio, Kondo Hiroatsu, Koide Kazuya, Kuhara Takahiro, Nakamura Kazuyuki, Kawano Taro, Naito Hitoshi, Sawai Shujiro, Fukuda Seisuke, Sakai Shinichiro
    Transactions of the Japan Society for Aeronautical and Space Sciences, 66(6) 199-208, Nov 4, 2023  Peer-reviewed
  • Cetiny Mustafa Efe, Soken Halil Ersin, Sakai Shinichiro
    The Journal of the Astronautical Sciences, 69 1726-1743, Nov 11, 2022  Peer-reviewed
  • 植田聡史, 伊藤琢博, 坂井真一郎
    計測自動制御学会論文集, 58(3) 194-201, Apr 7, 2022  Peer-reviewed
  • Shibata Takuma, Sakai Shinichiro
    JOURNAL OF SPACECRAFT AND ROCKETS, 59(2) 651-659, Mar 29, 2022  Peer-reviewed
  • Ito Takahiro, Sakai Shinichiro
    JOURNAL OF GUIDANCE, CONTROL, AND DYNAMICS, 46(4) 695-708, Feb 1, 2022  Peer-reviewed
  • Takahashi Yuta, Sakamoto Hiraku, Sakai Shin-ichiro
    Journal of Guidance, Control, and Dynamics, 45(2) 280-295, Feb 1, 2022  Peer-reviewed
  • Satoshi UEDA, Takahiro ITO, Shinichiro SAKAI
    Transactions of the Society of Instrument and Control Engineers, 58(3) 194-201, 2022  
  • Ueda Satoshi, Sakai Shin-ichiro
    TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, AEROSPACE TECHNOLOGY JAPAN, 19(3) 334-343, May 4, 2021  Peer-reviewed
  • 柴田 拓馬, 坂井 真一郎
    日本航空宇宙学会論文集, 69(2) 60-67, Apr 5, 2021  Peer-reviewed
  • Daijiro Shiraiwa, Nobuhiko Tanaka, Kohei Kojima, Takao Kaneko, Shinichiro Sakai, Kenichi Kushiki, Shujiro Sawai, Keisuke Michigami, Taro Kawano, Kenta Goto, Katsumi Furukawa
    Proceedings of the International Astronautical Congress, IAC, C4, 2021  
  • Go Fujii, Kaname Kawatsu, Yu Daimon, Keisuke Michigami, Kenichi Kushiki, Shujiro Sawai, Shinichiro Sakai
    AIAA Propulsion and Energy Forum, 2021, 2021  
  • Ito Takahiro, Sakai Shin-ichiro
    Journal of Guidance, Control, and Dynamics, 44(4) 854-861, Dec 1, 2020  Peer-reviewed
  • Ito Takahiro, Sakai Shin-ichiro
    Acta Astronautica, 176(6) 438-454, Nov 1, 2020  Peer-reviewed
  • Ikari Satoshi, Ito Takahiro, Oguri Kenshiro, Inamori Takaya, Sakai Shinichiro, Kawakatsu Yasuhiro, Tomiki Atsushi, Funase Ryu
    JOURNAL OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, 68(2) 89-95, Aug 1, 2020  Peer-reviewed
    <p>A Fault Detection, Isolation, and Recovery (FDIR) algorithm for attitude control systems is a key technology to increasing the reliability and survivability of spacecraft. Micro/nano interplanetary spacecraft, which are rapidly evolving in recent years, also require robust FDIR algorithms. However, the implementation of FDIR algorithms to these micro/nano spacecraft is difficult because of the limitations of their resources (power, mass, cost, and so on). This paper shows a strategy of how to construct a FDIR algorithm in the limited resources, taking examples from micro deep space probe PROCYON. The strategy focuses on function redundancies and multi-layer FDIR. These ideas are integrated to suit the situation of micro/nano interplanetary spacecraft and demonstrated in orbit by the PROCYON mission. The in-orbit results are discussed in detail to emphasize the effectiveness of the FDIR algorithm. </p>
  • Soken Halil Ersin, Sakai Shin-ichiro, Asamura Kazushi, Nakamura Yosuke, Takashima Takeshi, Shinohara Iku
    Aerospace, 7(97) 97-97, Jul 1, 2020  Peer-reviewed
    JAXA’s ERG (Exploration of Energization and Radiation in Geospace) Spacecraft, which is nicknamed Arase, was launched on 20 December 2016. Arase is a spin-stabilized and Sun-oriented spacecraft. Its mission is to explore how relativistic electrons in the radiation belts are generated during space storms. Two different on-ground attitude determination algorithms are designed for the mission: A TRIAD-based algorithm that inherits from old missions and a filtering-based new algorithm. This paper, first, discusses the design of the filtering-based attitude determination algorithm, which is mainly based on an Unscented Kalman Filter (UKF), specifically designed for spinning spacecraft (SpinUKF). The SpinUKF uses a newly introduced set of attitude parameters (i.e., spin-parameters) to represent the three-axis attitude of the spacecraft and runs UKF for attitude estimation. The paper then presents the preliminary attitude estimation results for the spacecraft that are obtained after the launch. The results are presented along with the encountered challenges and suggested solutions for them. These preliminary attitude estimation results show that the expected accuracy of the fine attitude estimation for the spacecraft is less than 0.5°.
  • Soken Halil Ersin, Sakai Shin-ichiro
    ISA Transactions, Sep 1, 2019  Last author
  • 柴田 拓馬, 坂井 真一郎
    日本航空宇宙学会論文集, 67(4) 126-135, Aug 1, 2019  Last author
  • Mitani Shinji, Mizutani Tadahito, Sakai Shin-ichiro
    DESIGN AND DEVELOPMENT OF FIBER OPTIC ROTATION SENSORS, 113-124, Jul 1, 2019  
  • 新井 久旺, 坂井 真一郎
    日本航空宇宙学会論文集, 67(3) 81-92, Jun 1, 2019  Last author
  • Takahiro Ito, Shinichiro Sakai
    Proceedings of the International Astronautical Congress, IAC, 2019-, 2019  
  • Nakamura Yosuke, Fukuda Seisuke, Shibano Yasuko, Ogawa Hiroyuki, Sakai Shin-ichiro, Shimizu Shigehito, Soken Halil Ersin, Miyazawa Yu, Toyota Hiroyuki, Kukita Akio, Maru Yusuke, Nakatsuka Junichi, Sakai Tomohiko, Takeuchi Shinsuke, Maki Kenichiro, Mita Makoto, Ogawa Emiko, Kakehashi Yuya, Nitta Kumi, Asamura Kazushi, Takashima Takeshi, Shinohara Iku
    Earth, Planets and Space, 70(1) 102, Dec 1, 2018  
  • Ito Takahiro, .Ikari Satoshi, Funase Ryu, Sakai Shin-ichiro, Kawakatsu Yasuhiro, Tomiki Atsushi, Inamori Takaya
    Acta Astronautica, 152 299-309, Nov 1, 2018  
  • 石井晴之, 村田暁紀, 上野史, 辰巳嵩豊, 梅内祐太, 高玉圭樹, 原田智広, 鎌田弘之, 石田貴行, 福田盛介, 澤井秀次郎, 坂井真一郎
    航空宇宙技術(Web), 17 69-78, May 1, 2018  
  • 植田 聡史, 坂井 真一郎, 福田 盛介, 澤井 秀次郎
    計測と制御, 57(4) 222-228, Apr 1, 2018  
  • Satoshi UEDA, Takahiro ITO, Takehiro HIGUCHI, Seiya UENO, Shinichiro SAKAI
    AEROSPACE TECHNOLOGY JAPAN, THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, 17 45-54, Mar 1, 2018  
  • SAWAI Shujiro, OKAZAKI Shun, KUKITA Akio, MIYAZAWA Yu, UEDA Satoshi, TOBE Hirobumi, MARU Yusuke, SHIMOJI Haruhiko, SHIMIZU Yasuhiro, SHIBASAKI Yusuke, SHIMADA Sadanori, FUKUDA Seisuke, YOKOI Takahiro, YABUSHITA Takeshi, SATO Kenichiro, NAKAMURA Kazuyuki, KUHARA Takahiro, TAKAMI Tsuyoshi, TANAKA Nobuhiko, FURUKAWA Katsumi, SAKAI Shinichiro, KUSHIKI Kenichi, ARAKAWA Tetsuhito, SATO Eiichi, TOMIKI Atsushi, MICHIGAMI Keisuke, KAWANO Taro
    AEROSPACE TECHNOLOGY JAPAN, THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, 17 35-43, Mar 1, 2018  
    <p>SLIM (Smart Lander for Investigating Moon) is the Lunar Landing Demonstrator which is under development at ISAS/JAXA. SLIM demonstrates not only so-called Pin-Point Landing Technique to the lunar surface, but also demonstrates the design to make the explorer small and lightweight. Realizing the compact explorer is one of the key points to achieve the frequent lunar and planetary explorations. This paper summarizes the preliminary system design of SLIM, especially the way to reduce the size.</p>
  • 岡田怜史, 中浜優佳, 森部美沙子, 鎌田弘之, 狩谷和季, 高玉圭樹, 石田貴行, 福田盛介, 澤井秀次郎, 坂井真一郎
    航空宇宙技術(Web), 17 61-67, Mar 1, 2018  
  • Halil Ersin Soken, Shin-Ichiro Sakai, Kazushi Asamura, Yosuke Nakamura, Takeshi Takashima
    Advances in the Astronautical Sciences, 162 1175-1193, 2018  
  • Ryo HIRASAWA, Toshinori IKENAGA, Satoshi UEDA, Shinichiro SAKAI
    AEROSPACE TECHNOLOGY JAPAN, THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, 17 1-9, Jan 1, 2018  Last author
  • Shuichi Sato, Seiji Kawamura, Masaki Ando, Takashi Nakamura, Kimio Tsubono, Akito Araya, Ikkoh Funaki, Kunihito Ioka, Nobuyuki Kanda, Shigenori Moriwaki, Mitsuru Musha, Kazuhiro Nakazawa, Kenji Numata, Shin-ichiro Sakai, Naoki Seto, Takeshi Takashima, Takahiro Tanaka, Kazuhiro Agatsuma, Koh-suke Aoyanagi, Koji Arai, Hideki Asada, Yoichi Aso, Takeshi Chiba, Toshikazu Ebisuzaki, Yumiko Ejiri, Motohiro Enoki, Yoshiharu Eriguchi, Masa-Katsu Fujimoto, Ryuichi Fujita, Mitsuhiro Fukushima, Toshifumi Futamase, Katsuhiko Ganzu, Tomohiro Harada, Tatsuaki Hashimoto, Kazuhiro Hayama, Wataru Hikida, Yoshiaki Himemoto, Hisashi Hirabayashi, Takashi Hiramatsu, Feng-Lei Hong, Hideyuki Horisawa, Mizuhiko Hosokawa, Kiyotomo Ichiki, Takeshi Ikegami, Kaiki T. Inoue, Koji Ishidoshiro, Hideki Ishihara, Takehiko Ishikawa, Hideharu Ishizaki, Hiroyuki Ito, Yousuke Itoh, Nobuki Kawashima, Fumiko Kawazoe, Naoko Kishimoto, Kenta Kiuchi, Shiho Kobayashi, Kazunori Kohri, Hiroyuki Koizumi, Yasufumi Kojima, Keiko Kokeyama, Wataru Kokuyama, Kei Kotake, Yoshihide Kozai, Hideaki Kudoh, Hiroo Kunimori, Hitoshi Kuninaka, Kazuaki Kuroda, Kei-ichi Maeda, Hideo Matsuhara, Yasushi Mino, Osamu Miyakawa, Shinji Miyoki, Mutsuko Y. Morimoto, Tomoko Morioka, Toshiyuki Morisawa, Shinji Mukohyama, Shigeo Nagano, Isao Naito, Kouji Nakamura, Hiroyuki Nakano, Kenichi Nakao, Shinichi Nakasuka, Yoshinori Nakayama, Erina Nishida, Kazutaka Nishiyama, Atsushi Nishizawa, Yoshito Niwa, Taiga Noumi, Yoshiyuki Obuchi, Masatake Ohashi, Naoko Ohishi, Masashi Ohkawa, Norio Okada, Kouji Onozato, Kenichi Oohara, Norichika Sago, Motoyuki Saijo, Masaaki Sakagami, Shihori Sakata, Misao Sasaki, Takashi Sato, Masaru Shibata, Hisaaki Shinkai, Kentaro Somiya, Hajime Sotani, Naoshi Sugiyama, Yudai Suwa, Rieko Suzuki, Hideyuki Tagoshi, Fuminobu Takahashi, Kakeru Takahashi, Keitaro Takahashi, Ryutaro Takahashi, Ryuichi Takahashi, Tadayuki Takahashi, Hirotaka Takahashi, Takamori Akiteru, Tadashi Takano, Keisuke Taniguchi, Atsushi Taruya, Hiroyuki Tashiro, Yasuo Torii, Morio Toyoshima, Shinji Tsujikawa, Yoshiki Tsunesada, Akitoshi Ueda, Ken-ichi Ueda, Masayoshi Utashima, Yaka Wakabayashi, Hiroshi Yamakawa, Kazuhiro Yamamoto, Toshitaka Yamazaki, Jun’ichi Yokoyama, Chul-Moon Yoo, Shijun Yoshida, Taizoh Yoshino
    Journal of Physics: Conference Series, 840(1) 012010-012010, May, 2017  Peer-reviewed
  • Takahiro Ito, Satoshi Ueda, Shin-Ichiro Sakai, Shujiro Sawai, Seisuke Fukuda, Kenichi Kushiki, Seiya Ueno, Takehiro Higuchi, Yusuke Shibasaki, Takeshi Kuroda
    Proceedings of the International Astronautical Congress, IAC, 2 856-866, 2017  
  • Halil Ersin Soken, Shin-Ichiro Sakai, Kazushi Asamura, Yosuke Nakamura, Takeshi Takashima
    Advances in the Astronautical Sciences, 160 2615-2629, 2017  
  • Halil Ersin Soken, Shin-ichiro Sakai, Kazushi Asamura, Yosuke Nakamura, Takeshi Takashima
    SPACEFLIGHT MECHANICS 2017, PTS I - IV, 160 2615-2629, 2017  
  • Satoshi Ikari, Takaya Inamori, Takahiro Ito, Kaito Ariu, Kenshiro Oguri, Masataka Fujimoto, Shinichiro Sakai, Yasuhiro Kawakatsu, Ryu Funase
    Transactions of the Japan Society for Aeronautical and Space Sciences, 60(3) 181-191, 2017  
  • Satoshi Ikari, Takaya Inamori, Takahiro Ito, Kaito Ariu, Kenshiro Oguri, Masataka Fujimoto, Shinichiro Sakai, Yasuhiro Kawakatsu, Ryu Funase
    TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, 60(3) 181-191, 2017  
  • Halil Ersin Soken, Shin-Ichiro Sakai, Kazushi Asamura, Yosuke Nakamura, Takeshi Takashima
    2016 AIAA Guidance, Navigation, and Control Conference, 2016  
  • TAKINO Tatsuya, NOMURA Izuru, MORIBE Misako, KAMATA Hiroyuki, TAKADAMA Keiki, FUKUDA Seisuke, SAWAI Shujiro, SAKAI Shin-ichiro
    TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, AEROSPACE TECHNOLOGY JAPAN, 14(30) Pt_7-Pt_14, 2016  
    <p>In this study, a crater detection method for a moon-landing system with low computational resources is proposed. The proposed method is applied to the Smart Lander for Investigating Moon (SLIM), which aims for a pin-point landing on the moon. According to this plan, surface images of the moon will be captured by a camera mounted on the space probe, and the craters are to be detected from the images. Based on the positional relationship between detected craters, the method estimates the exact flight position of the space probe. Because the computational resources of SLIM are limited, rapid and accurate crater detection must be performed using fixed-point arithmetic on a field-programmable gate array (FPGA). This study proposes a crater detection method that uses principal component analysis (PCA). The computational processing for crater detection by PCA is performed by product-sum operations, which are suitable for fixed-point arithmetic. Moreover, this method is capable of parallel processing; hence high-speed processing is expected. This study not only introduces a crater detection method using PCA but also evaluates the properties of this method.</p>
  • MARU Yusuke, YAMAMOTO Shin, FUKUYAMA Seijiro, OKADA Junpei, KAN Yuji, KAKEHASHI Yuya, FUKE Hideyuki, ITO Takahiro, MIZUSHIMA Takanari, EGUCHI Hikaru, ISHIKAWA Takehiko, BANDO Nobutaka, SAWAI Shujiro, SHIMIZU Shigehito, SAKAI Shin-ichiro, YOSHIMITSU Tetsuo, KOBAYASHI Hiroaki, KIKUCHI Masao
    JOURNAL OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, 63(6) 257-264, 2015  Peer-reviewed
    In this paper is presented a microgravity experiment system utilizing a high altitude balloon. The feature is a double shell structure of a vehicle that is dropped off from the balloon and a microgravity experiment section that is attached to the inside of the vehicle with a liner slider. Control with cold gas jet thrusters of relative position of the experiment section to the vehicle and attitude of the vehicle maintains fine microgravity environment. The design strategy of the vehicle is explained, mainly referring to differences from the authors' previous design. The result of the flight experiment is also shown to evaluate the characteristics of the presented system.
  • Kikuchi Masao, Ishikawa Takehiko, Yamamoto Shin, Sawai Shujiro, Maru Yusuke, Sakai Shinichiro, Bando Nobutaka, Shimizu Shigehito, Kobayashi Hiroaki, Yoshimitsu Tetsuo, Kan Yuji, Mizushima Takanari, Fukuyama Seijiro, Okada Junpei, Yoda Shinichi, Fuke Hideyuki, Kakehashi Yuya, Hashimoto Tatsuaki
    INTERNATIONAL JOURNAL OF MICROGRAVITY SCIENCE AND APPLICATION, 32(2), 2015  Peer-reviewed
  • BANDO Nobutaka, FUKE Hideyuki, SHOJI Yasuhiro, DOETINCHEM Philip v., HAILEY Charles J., SAKAI Shin-ichiro, HASHIMOTO Tatsuaki
    SPACE TECHNOLOGY JAPAN, THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, 14 59-65, 2015  
    In this paper, direction control of balloon gondola with only untwisting motor is proposed. Typically a reaction wheel and another actuator for unloading the reaction wheel are in use to control the attitude (or direction) of the gondola. Although this method can get high accuracy control performance, two actuators spend many resources of the gondola. The proposed method uses only untwisting motor installed above the gondola to rotate. This method can not realize such high accuracy control performance but realize direction control with the most simple configuration. The proposed method is applied to prototype GAPS (General Anti-Particle Spectrometer) balloon experiment in 2012. This paper shows control design for this experiment and the results of the proposed method.
  • A. Yamazaki, F. Tsuchiya, T. Sakanoi, K. Uemizu, K. Yoshioka, G. Murakami, M. Kagitani, Y. Kasaba, I. Yoshikawa, N. Terada, T. Kimura, S. Sakai, K. Nakaya, S. Fukuda, S. Sawai
    SPACE SCIENCE REVIEWS, 184(1-4) 259-274, Nov, 2014  Peer-reviewed
  • Shinji Mitani, Yasuhiro Kawakatsu, Shin-ichiro Sakai, Naomi Murakami, Toshihiko Yamawaki, Tadahito Mizutani, Keiji Komatsu, Hirokazu Kataza, Keigo Enya, Takao Nakagawa
    SPACE TELESCOPES AND INSTRUMENTATION 2014: OPTICAL, INFRARED, AND MILLIMETER WAVE, 9143, 2014  
  • T. Kotani, K. Enya, T. Nakagawa, H. Matsuhara, H. Kataza, M. Kawada, M. Mita, K. Komatsu, H. Uchida, K. Fujiwara, S. Mitani, S. Sakai, K. Haze, H. Kaneda, S. Oyabu, D. Ishihara, T. Miyata, S. Sako, T. Nakamura, K. Asano, M. Tamura, J. Nishikawa, T. Yamashita, N. Narita, H. Hayano, S. Oya, E. Kokubo, Y. Itoh, T. Matsuo, M. Fukagawa, H. Shibai, M. Honda, N. Baba, N. Murakami, Y. K. Okamoto, S. Ida, M. Takami, L. Abe, O. Guyon, T. Yamamuro
    SPACE TELESCOPES AND INSTRUMENTATION 2012: OPTICAL, INFRARED, AND MILLIMETER WAVE, 8442, 2012  
  • NAGAMATSU Hiroyuki, ASAMURA Kazushi, YAMAZAKI Atsushi, SAKAI Shin-ichiro, FUKUDA Seisuke, SAITO Hirobumi
    TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, SPACE TECHNOLOGY JAPAN, 10(28) Pf_15-Pf_19, 2012  
    We are in progress to develop a system for automatic operation of a satellite in order to reduce human load at satellite steady operation phase. The ground station for small satellite REIMEI (INDEX : INnovative-technology Demonstration EXperiment) is used as a test bench for verification of the proposed method. In our new automatic operation system, a scheduler software as a substitutive operator manages all the operations through a unified procedure, including sending command, receiving telemetry, and driving antenna in accordance with an operation time line which is prepared before the operation pass. The scheduler also performs diagnostics of satellite anomaly based upon the received telemetry data and status of the ground station. In case that some anomaly of the satellite is detected, the scheduler initiates an emergency schedule that was prepared depending on the emergency level. The automatic operation system is nearly completed for downlink operations of the data recorder that account for 75% of REIMEI steady operation. This approach is very effective to reduce psychological and physical load of operators.

Misc.

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Major Presentations

 281
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Research Projects

 5

Industrial Property Rights

 4

Social Activities

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