Journal
NEUROCOMPUTING
Volume 423, Issue -, Pages 506-517Publisher
ELSEVIER
DOI: 10.1016/j.neucom.2020.10.074
Keywords
Fixed time; Formation control; Multi-agent system
Categories
Funding
- National Natural Science Foundation of China [61473156]
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This paper investigates fixed-time formation tracking control problem for multi-agent systems, proposes a novel fixed-time formation control scheme, and demonstrates its effectiveness through simulation results.
This paper investigates the fixed-time formation tracking control problem for multi-agent systems with model uncertainties and in absence of leader's velocity measurements. For each follower, a novel fixed time cascaded leader state observer (FTCLSO) without velocity measurements is first designed to reconstruct the states of the leader. Then, radial basis function neural networks (RBFNNs) are adopted to approximate the model uncertainties online. Based on the proposed FTCLSO and RBFNNs, a novel fixed-time formation control scheme is constructed to address the time-varying formation tracking problem by utilizing fixed-time nonsmooth backstepping technique. The fixed-time convergence of the formation tracking error is guaranteed through Lyapunov stability analysis. Finally, simulation results demonstrate the effectiveness of the proposed formation tracking control scheme. (c) 2020 Elsevier B.V. All rights reserved.
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