Adaptive Fuzzy Relative Pose Control of Spacecraft During Rendezvous and Proximity Maneuvers
Adaptive Fuzzy Relative Pose Control of Spacecraft During Rendezvous and Proximity Maneuvers
复制标题
航天器交会和接近机动过程中的自适应模糊相对位姿控制
DOI：
10.1109/tfuzz.2018.2833028
复制
发表时间：
2018-12-01
影响因子：
11.9
通讯作者：
Sun, Changyin
中科院分区：
文献类型：
--
作者：
Sun, Liang;He, Wei;Sun, Changyin
针对存在未知模型不确定性和复杂运动耦合的航天器邻近系统，提出了一种六自由度集成自适应模糊非线性控制方法。利用自适应模糊逻辑系统逼近未知的非线性函数，设计了自适应模糊反推相对位姿控制器。为了克服多变量自适应模糊系统中“维度诅咒”的缺点，更新隶属函数中的所有参数，以减少模糊规则的数量和计算负担。通过李雅普诺夫理论证明了所提出的自适应模糊非线性控制器保证了整个系统中所有信号的有界性，并且相对运动信息最终收敛到零的可调小邻域内。最后通过数值算例验证了该控制方法的有效性。
A six-degrees-of-freedom integrated adaptive fuzzy nonlinear control method is presented in this paper for uncertain spacecraft proximity systems subject to unknown model uncertainties and complex kinematic couplings. Adaptive fuzzy logic systems are developed to approximate the unknown nonlinear functions, and an adaptive fuzzy backstepping relative pose controller is designed. To overcome the drawback of “curse of dimensionality” in adaptive fuzzy systems for multiple variable systems, all of the parameters in membership functions are updated to reduce the amount of fuzzy rules and computational burden. It is proven via Lyapunov theory that the proposed adaptive fuzzy nonlinear controller ensures the boundedness of all signals in overall system, and the relative motion information ultimately converges to adjustable small neighborhoods of zero. A computer experiment with numerical example is carried out to demonstrate the performance of the proposed control approach.