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针对惯量矩阵参数无法精确获知的航天器姿态控制问题,将一般的姿态动力学模型转化为欧拉角形式的动力学方程,基于无源性理论提出了一种无源自适应控制律.通过理论分析证明了该控制策略的渐进跟踪性能.该控制策略可以有效地解决由于各种因素引起的转动惯量未知时的姿态控制问题.数值仿真表明该方案的有效性.
Aiming at the attitude control problem of spacecraft that can not know the parameters of inertia matrix accurately, the general attitude dynamics model is transformed into the Euler angle dynamic equation and a passive adaptive control law is proposed based on the theory of passive. The tracking performance of the control strategy is proved by the analysis.The control strategy can effectively solve the problem of attitude control when the moment of inertia is unknown due to various factors.Numerical simulation shows the effectiveness of the proposed scheme.