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Title: Distributed prescribed-time attitude coordination for multiple spacecraft with actuator saturation under directed graph
Authors: Xu, Chuang
Wu, Baolin
Wang, Danwei
Keywords: Engineering::Electrical and electronic engineering
Issue Date: 2021
Source: Xu, C., Wu, B. & Wang, D. (2021). Distributed prescribed-time attitude coordination for multiple spacecraft with actuator saturation under directed graph. IEEE Transactions On Aerospace and Electronic Systems, 58(4), 2660-2672.
Journal: IEEE Transactions on Aerospace and Electronic Systems
Abstract: This article studies the distributed prescribed-time coordination problem for the attitude system of multiple spacecraft subject to actuator saturation under the communication topology containing a directed spanning tree. The prescribed-time coordination requires that every spacecraft in a formation reaches an agreement state in a preset time. This preset time is set by the user and independent of any other control parameters and the initial state of spacecraft. To achieve this goal, we first design a distributed prescribed-time observer for every follower spacecraft to estimate the state of leader spacecraft. Next, a prescribed-time attitude control law is proposed by utilizing the estimated state of the leader spacecraft. In the proposed control law, an adaptive compensation law is used to compensate the input saturation. Furthermore, the prescribed-time stability of multispacecraft system subject to input saturation under the proposed scheme is analyzed in theory and simulation. The simulation results show the high reliability and effectiveness of the scheme.
ISSN: 0018-9251
DOI: 10.1109/TAES.2021.3135484
Schools: School of Electrical and Electronic Engineering 
Rights: © 2021 IEEE. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
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