A new approach to on-board stationkeeping of GEO-satellites |
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Authors: | Bong-Kyu Park Min-Jea Tahk Hyo-Choong Bang Chang-Su Park Jae-Hyun Jin |
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Institution: | aCommunication Satellite Systems Department, Korea Aerospace Research Institute, 45 Eoeun, Yuseong, Daejeon 305-333, Republic of Korea;bDivision of Aerospace Engineering, KAIST, 373-1 Guseong Yuseong, Daejeon 305-701, Republic of Korea;cMission Design Department, Korea Aerospace Research Institute, 45 Eoeun, Yuseong, Daejeon 305-333, Republic of Korea;dKorea Atomic Energy Research Institute, P.O. Box 105, Deokjin, Yuseong, Daejeon 305-353, Republic of Korea |
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Abstract: | This paper proposes a new autonomous stationkeeping system suitable for geostationary satellite operation and presents the results of the computer simulations conducted to verify the proposed system. The proposed on-board stationkeeping system receives pseudo-range signal from the ground equipments located at two different positions with a long baseline, determines the orbit error in real-time, and generates the orbit control command. To minimize the complexity of the on-board stationkeeping logic and to improve reliability, a simple orbit controller has been designed, which generates a series of control signal making the orbit roughly follow the predetermined reference range data. The reference range data are assumed to be generated through a ground based computer simulation and embedded or uploaded with time tag. Finally, the performance of the proposed system has been verified through computer simulations. |
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Keywords: | Geostationary satellite Stationkeeping Autonomous stationkeeping On-board stationkeeping Real-time orbit determination |
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