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Nonlinear Robust Adaptive Deterministic Control for Flexible Hypersonic Vehicles in the Presence of Input Constraint
Author(s) -
Tian Bailing,
Fan Wenru,
Su Rui,
Zong Qun
Publication year - 2015
Publication title -
asian journal of control
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.769
H-Index - 53
eISSN - 1934-6093
pISSN - 1561-8625
DOI - 10.1002/asjc.1146
Subject(s) - control theory (sociology) , hypersonic speed , nonlinear system , constraint (computer aided design) , adaptive control , sliding mode control , computer science , robustness (evolution) , hypersonic flight , robust control , engineering , control (management) , aerospace engineering , physics , artificial intelligence , mechanical engineering , biochemistry , chemistry , quantum mechanics , gene
A nonlinear deterministic robust control scheme is developed for a flexible hypersonic vehicle with input saturation. Firstly, the model analysis is conducted for the hypersonic vehicle model via the input‐output linearized technique. Secondly, the sliding mode manifold is designed based on homogeneity theory. Then an adaptive high order sliding mode control scheme is proposed to achieve tracking for the step change in altitude and velocity for hypersonic vehicles where the uncertainty boundary is unknown. Furthermore, the control input constraint is investigated and another new adaptive law is proposed to estimate the uncertainties and to guarantee the stability of the system with input saturation. Finally, the simulation results are provided to demonstrate the effectiveness of the proposed method.