Distributed fixed-time output feedback attitude coordination tracking control for multiple rigid spacecraft

被引：0
|
作者：
Sui W.-S. [1 ]
Duan G.-R. [1 ]
Zhang M.-R. [1 ]
机构：
[1] Center for Control Theory and Guidance Technology, Harbin Institute of Technology, Harbin
来源：
Kongzhi yu Juece/Control and Decision | 2021年 / 36卷 / 05期
关键词：
Attitude coordination tracking; Fixed-time control; Fixed-time observer; Homogeneous technique; Integral sliding mode; Multiple rigid spacecraft;
D O I：
10.13195/j.kzyjc.2019.0968
中图分类号：
学科分类号：
摘要：
A distributed fixed-time attitude coordination tracking control scheme is proposed based on integral sliding mode for multiple rigid spacecraft on condition of that the angular velocities of members are not available. A novel integral sliding mode is designed based on the bi-limit homogeneous technique, which achieves fixed-time convergence. A fixed-time observer is proposed to obtain an estimation of unmeasurable spacecraft information and a sliding-mode estimator is introduced to estimate the leader's attitude, which reduces the communication flow between spacecraft. By combining the fixed-time observer, the sliding mode estimator and the integral sliding mode method, a distributed fixed-time output feedback attitude coordination tracking controller is designed to guarantee that follower spacecraft simultaneously track the leader's attitude in fixed time. The fixed-time stability of the closed-loop system is ensured by employing the algebraic graph theory and Lyapunov techniques. Simulation comparison results show the effectiveness and superiority of the proposed control scheme. Copyright ©2021 Control and Decision.
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页码：1049 / 1058
页数：9
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