基本情報
論文
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Acta Astronautica 223 36-48 2024年10月 査読有り筆頭著者
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Journal of Evolving Space Activities 2023年 査読有り
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Journal of Spacecraft and Rockets 1-11 2021年10月29日 査読有り筆頭著者Deployable payloads have been used to expand mission opportunities and enable autonomous navigation and guidance under uncertain terrain conditions. A spacecraft may deploy an artificial marker toward the surface of the target body. An estimation of the deployment trajectory of markers can provide important information for guidance and navigation. We propose a method estimating the deployment trajectory using only images and evaluate its accuracy and reliability. In addition, to determine the spacecraft's relative attitude with respect to the asteroid surface, we introduce an attitude estimation method using the spacecraft's own shadow. The results shown in this paper confirm that the estimated trajectory is sufficiently accurate and thus the proposed method is a viable option for future missions for determining the trajectory of deployable payloads using only images of a deployment.
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Icarus 358 114220-114220 2021年4月 査読有り
MISC
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Proceedings of the International Astronautical Congress, IAC 2020-October 2020年10月Copyright © 2020 by the International Astronautical Federation (IAF). All rights reserved. The removal of space debris from an orbit is one of the definitive solutions to the increasing Earth-orbiting satellites issue. To achieve active removal of space debris, accurate estimation of the state of motion of the target is crucial. In addition to that, a safe approach is preferable. Many strategies have been proposed for estimation of motion of a non-cooperative target, but there are still problems with regards to conducting precise, robust and cost-effective estimation in real-time. This study proposes a new strategy to solve this issue - a real-time and practical method based on optical navigation around small bodies. A computer simulation results show the efficacy of the proposed method and verifies that it can be a viable option for use in the capture of non-cooperative space debris targets.