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Positioning control for stratospheric satellites subject to dynamics uncertainty and input constraints

机译:受动力学不确定性和输入约束影响的平流层卫星的定位控制

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This paper proposed a fuzzy logic system approximation-based sliding mode control approach via backstepping technique (FLS-SSMC) to address the problem of positioning control for stratospheric satellites subject to dynamics uncertainty and input constraints. First, the positioning problem for stratospheric satellite is formulated. Second, the control design using sliding mode control via backstepping technique is demonstrated. Under this framework, an approximator based on fuzzy logic system (FLS) is designed to estimate the uncertain dynamics of the stratospheric satellite, and an adaptive law is designed to update the weight of the FLS. Moreover, boundness of all the signals of the closed-loop system is proven by using Lyapunov stability theorem. Finally, Compared experiment simulations of positioning control with and without input constraints are given to illustrate the effectiveness of the designed controller. (C) 2019 Elsevier Masson SAS. All rights reserved.
机译:本文提出了一种基于模糊逻辑系统的基于滑步控制的滑模控制方法(FLS-SSMC),以解决平流层卫星在动力学不确定性和输入约束条件下的定位控制问题。首先,提出了平流层卫星的定位问题。其次,论证了通过反向步进技术使用滑模控制的控制设计。在此框架下,设计了一种基于模糊逻辑系统(FLS)的近似器来估计平流层卫星的不确定动态,并设计了一种自适应律来更新FLS的权重。此外,利用李雅普诺夫稳定性定理证明了闭环系统所有信号的有界性。最后,给出了有输入约束和无输入约束的定位控制的对比实验仿真,以说明所设计控制器的有效性。 (C)2019 Elsevier Masson SAS。版权所有。

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