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25 December 2019, Volume 44 Issue 6
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EarthOriented Attitude Recovery Control Method of Satellites with Geocentric Vector Measurements Only
2018, 44(6): 1-7. doi:
10.3969/j.issn.1674-1579.2018.06.001
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Abstract: For the earthorienting satellite attitude anomaly with large angular rates without gyro measurement, the problem of the attitude rapid recovery only utilizing geocentricvector measurements is investigated. Firstly, a scale pendulum angle and its corresponding vector are defined based on the geocentric vector measurement, and a novel earthoriented attitude recovery control method is proposed integrating the scale pendulum angle magnitude inhibiting with energydissipating. Furthermore, all equilibria are obtained for the momentumbiased closedloop nonlinear system via applying the geometric approach, and equilibrium characteristic analysis indicates that the desired earthorienting stabilizing attitude state is to be the unique stable equilibrium with suitable parameter selection. Finally, the effectiveness of the proposed method is demonstrated by numerical simulations.