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Dive into the research topics where Shin-ichiro Sakai is active.

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Featured researches published by Shin-ichiro Sakai.


Journal of Low Temperature Physics | 2014

Mission Design of LiteBIRD

T. Matsumura; Y. Akiba; J. Borrill; Y. Chinone; M. Dobbs; H. Fuke; A. Ghribi; M. Hasegawa; K. Hattori; Makoto Hattori; M. Hazumi; W. L. Holzapfel; Y. Inoue; K. Ishidoshiro; H. Ishino; H. Ishitsuka; Kenichi Karatsu; Naoyuki Katayama; Isao Kawano; A. Kibayashi; Y. Kibe; K. Kimura; N. Kimura; K. Koga; M. Kozu; Eiichiro Komatsu; Adrian T. Lee; Hideo Matsuhara; S. Mima; K. Mitsuda

LiteBIRD is a next-generation satellite mission to measure the polarization of the cosmic microwave background (CMB) radiation. On large angular scales the B-mode polarization of the CMB carries the imprint of primordial gravitational waves, and its precise measurement would provide a powerful probe of the epoch of inflation. The goal of LiteBIRD is to achieve a measurement of the characterizing tensor to scalar ratio


Proceedings of SPIE | 2012

LiteBIRD: a small satellite for the study of B-mode polarization and inflation from cosmic background radiation detection

M. Hazumi; J. Borrill; Y. Chinone; M. Dobbs; H. Fuke; A. Ghribi; M. Hasegawa; K. Hattori; Makoto Hattori; W. L. Holzapfel; Y. Inoue; K. Ishidoshiro; H. Ishino; Kenichi Karatsu; Nobuhiko Katayama; Isao Kawano; A. Kibayashi; Y. Kibe; N. Kimura; K. Koga; Eiichiro Komatsu; A. T. Lee; Hideo Matsuhara; T. Matsumura; S. Mima; K. Mitsuda; H. Morii; S. Murayama; Makoto Nagai; R. Nagata


European Journal of Control | 2014

Robust Kalman filtering for small satellite attitude estimation in the presence of measurement faults

Halil Ersin Soken; Chingiz Hajiyev; Shin-ichiro Sakai

r


Advances in Space Research | 2011

The SPICA coronagraphic instrument (SCI) for the study of exoplanets

Keigo Enya; Takayuki Kotani; Kanae Haze; Kodai Aono; Takao Nakagawa; Hideo Matsuhara; Hirokazu Kataza; Takehiko Wada; Mitsunobu Kawada; Ken Fujiwara; Makoto Mita; S. Takeuchi; K. Komatsu; Shin-ichiro Sakai; H. Uchida; Shinji Mitani; Toshihiko Yamawaki; Takashi Miyata; Shigehisa Sako; Tasuku Nakamura; K. Asano; Takuya Yamashita; Norio Narita; Takashi Matsuo; Motohide Tamura; Jun Nishikawa; Eiichiro Kokubo; Yutaka Hayano; Shin Oya; Misato Fukagawa


international workshop on advanced motion control | 2008

Design and on-orbit evaluation of magnetic attitude control system for the “REIMEI” microsatellite

Shin-ichiro Sakai; Yosuke Fukushima; Hirobumi Saito

r to an uncertainty of


Journal of Aerospace Engineering | 2015

Adaptive Tuning of the Unscented Kalman Filter for Satellite Attitude Estimation

Halil Ersin Soken; Shin-ichiro Sakai


IEEE Transactions on Aerospace and Electronic Systems | 2014

In-orbit estimation of time-varying residual magnetic moment

Halil Ersin Soken; Shin-ichiro Sakai; Rafal Wisniewski

delta r=0.001


Proceedings of SPIE | 2014

LiteBIRD: mission overview and design tradeoffs

Tomotake Matsumura; Y. Akiba; J. Borrill; Y. Chinone; M. Dobbs; H. Fuke; M. Hasegawa; K. Hattori; M. Hattori; M. Hazumi; W. L. Holzapfel; Y. Hori; J. Inatani; M. Inoue; Y. Inoue; K. Ishidoshiro; H. Ishino; H. Ishitsuka; Kenichi Karatsu; S. Kashima; N. Katayama; Isao Kawano; A. Kibayashi; Y. Kibe; Kimihiro Kimura; N. Kimura; Eiichiro Komatsu; M. Kozu; K. Koga; A. T. Lee


IFAC Proceedings Volumes | 2014

Simultaneous Adaptation of the Process and Measurement Noise Covariances for the UKF Applied to Nanosatellite Attitude Estimation

Halil Ersin Soken; Cengiz Hacizade; Shin-ichiro Sakai

δr=0.001. In order to achieve this goal we will employ a kilo-pixel superconducting detector array on a cryogenically cooled sub-Kelvin focal plane with an optical system at a temperature of 4xa0K. We are currently considering two detector array options; transition edge sensor (TES) bolometers and microwave kinetic inductance detectors. In this paper we give an overview of LiteBIRD and describe a TES-based polarimeter designed to achieve the target sensitivity of 2xa0


Earth, Planets and Space | 2018

Exploration of energization and radiation in geospace (ERG): challenges, development, and operation of satellite systems

Yosuke Nakamura; Seisuke Fukuda; Yasuko Shibano; Hiroyuki Ogawa; Shin-ichiro Sakai; Shigehito Shimizu; Ersin Soken; Yu Miyazawa; Hiroyuki Toyota; Akio Kukita; Yusuke Maru; Junichi Nakatsuka; Tomohiko Sakai; Shinsuke Takeuchi; Kenichiro Maki; Makoto Mita; Emiko Ogawa; Yuya Kakehashi; Kumi Nitta; Kazushi Asamura; Takeshi Takashima; I. Shinohara

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Shujiro Sawai

Japan Aerospace Exploration Agency

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Seisuke Fukuda

Japan Aerospace Exploration Agency

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Halil Ersin Soken

Japan Aerospace Exploration Agency

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Nobutaka Bando

Japan Aerospace Exploration Agency

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Shinji Mitani

Japan Aerospace Exploration Agency

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H. Fuke

Japan Aerospace Exploration Agency

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Hirobumi Saito

Japan Aerospace Exploration Agency

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Keigo Enya

Japan Aerospace Exploration Agency

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Takao Nakagawa

Japan Aerospace Exploration Agency

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