Practical fixed-time distributed adaptive fault estimation for attitude synchronization control systems |
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| Institution: | 1. School of Mathematical Sciences, Shanxi University, Taiyuan 030006, PR China;2. School of Automation and Software Engineering, Shanxi University, Taiyuan 030006, PR China;1. Northwestern Polytechnical University, School of Automation, 1 Dongxianglu, Xi''an 710129, China;2. Key Lab of Information Fusion Technology (Ministry of Education);1. Department of Electrical and Computer Engineering, University of Kashan, Iran;2. Electrical and Electronic Engineering Department, Shahed University, Tehran, Iran;1. German Jordanian University, School of Electrical Engineering and Information Technology, Amman Madaba Street, PO Box 35247, Amman 11180 Jordan;2. German Jordanian University, School of Basic Sciences and Humanities, Amman Madaba Street, PO Box 35247, Amman 11180 Jordan |
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| Abstract: | In this paper, the distributed adaptive fault estimation issue using practical fixed-time design is investigated for attitude synchronization control systems. A distributed fault estimation observer is proposed based on the fixed-time technique. Meanwhile, a novel fixed-time adaptive fault estimation algorithm is also constructed to guarantee convergence rate and improve estimation rapidity. The fault estimation error is uniformly ultimately bounded and is practically fixed-time stable, which converges to the neighborhood of the origin in a fixed time. Finally, simulation results of an attitude synchronization control system are presented to verify the effectiveness of proposed techniques. |
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