Finite-Time Extended State Observer-Based Attitude Control for Hypersonic Vehicles with Angle-of-Attack Constraint

This paper develops and validates a modified backstepping control scheme for hypersonic vehicles (HSVs) with uncertain dynamics and angle-of-attack (AOA) constraint, which incorporates a novel finite-time extended state observer (FTESO) and a time-varying barrier Lyapunov function (BLF)-based contro...

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Bibliographic Details
Published in:Mathematics (Basel) 2024-04, Vol.12 (7), p.1061
Main Authors: Lu, Qingli, Sun, Ruisheng, Lu, Yu, Liu, Xuanting
Format: Article
Language:English
Subjects:
Accuracy
Analysis
Angle
angle-of-attack constraint
Attack and defense (Military science)
Attitude control
barrier Lyapunov function
Constraint satisfaction
Constraints
Control
Control theory
Controllers
Euclidean space
Finite element method
finite-time extended state observer
Hypersonic planes
Hypersonic vehicles
Liapunov functions
Methods
Military aspects
State observers
Tracking errors
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Summary:This paper develops and validates a modified backstepping control scheme for hypersonic vehicles (HSVs) with uncertain dynamics and angle-of-attack (AOA) constraint, which incorporates a novel finite-time extended state observer (FTESO) and a time-varying barrier Lyapunov function (BLF)-based controller. In order to ensure that observation errors converge before the controller reaches the steady states, the “adding a power integrator” (AAPI) technique is utilized to design the FTESO by transforming the observation problem of the traditional extended state observer (ESO) into a stabilization problem. Combining time-varying constraints and tracking errors to construct the BLF, the backstepping control law that can adapt to large initial tracking errors is derived. Theoretical and comparative simulation results show that the proposed FTESO performs well in terms of speed and accuracy, and AOA is constrained within the prescribed region.
ISSN:2227-7390
2227-7390
DOI:10.3390/math12071061