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http://dx.doi.org/10.5139/JKSAS.2016.44.10.853

Attitude Determination for Gyroless Spacecraft Using Reaction Wheels  

Park, Seong-Yong (Aerospace Engineering, Chosun University)
Kim, Young-Ouk (Aerospace Engineering, Chosun University)
Leeghim, Henzeh (Aerospace Engineering, Chosun University)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.44, no.10, 2016 , pp. 853-861 More about this Journal
Abstract
This paper deals with a new technique utilizing the angular speed of the reaction wheels to determine attitudes and angular rates for gyroless satellites. The suggested algorithm in this study is designed to determine the precise attitude and angular rates under actual space environments by the support of the angular speeds of reaction wheels based on the extended Kalman filter. Furthermore, the proposed approach is also designed to estimate not only the attitude and angular rates of spacecraft but the external disturbances. The numerical simulation was conducted for gyloless spacecraft installed with four reaction wheels of the pyramid-type configuration. The performance of the proposed algorithm is verified by using numerical simulations.
Keywords
Gyroless Satellite; Attitude Determination; Reaction Wheels; Extended Kalman Filter; External Disturbances;
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