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Fractional-order sliding mode control based guidance law with impact angle constraint
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Fractional-order sliding mode control based guidance law with impact angle constraint
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Journal Article
Fractional-order sliding mode control based guidance law with impact angle constraint
2021
Overview
In this paper, the terminal guidance problem of unpowered lifting reentry vehicle to stationary target is studied. Based on the requirement of attacking the target with high precision and high impact angle constraint, a fractional-order theory combined sliding mode guidance law is proposed. Its sliding surface is specially designed to satisfy the requirements in the terminal guidance phase. The novel fractional-order sliding mode guidance law is established in both two-dimensional environment and three-dimensional environment; then, the systems are proved to be asymptotically stable according to the Lyapunov stability principle. Finally, compared with the one without fractional-order term, experiments show the novel guidance law has better stability. Monte Carlo simulation verifies that the designed guidance law is more robust against the disturbance of random noise and ensures higher precision in terms of impact angle error and miss distance.
Publisher
Springer Netherlands,Springer Nature B.V
Subject
/ Control
