Nonlinear disturbance observer-based adaptive sliding mode control for a generic hypersonic vehicle

Jianguo Guo, Hao Zhang, Xiaodong Lu, Jun Zhou

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

In this paper, a new adaptive sliding mode control method is presented for the longitudinal model of a generic hypersonic vehicle subject to uncertainties and external disturbance. Firstly, an oriented-control model with mismatched uncertainties is built for a generic hypersonic vehicle. Secondly, the back-stepping technique is introduced to design a sliding mode controller with an adaptive law to adapt to the disturbance and uncertainty. Thirdly, a set of nonlinear disturbance observers are designed to estimate the lumped disturbance and compensate the sliding mode controller, and the stability of the proposed controller is analyzed by utilizing Lyapunov stability theory. Finally, simulation results show that the effectiveness of the proposed controller is validated by the nonlinear model and the proposed method exhibits promising robustness to mismatched uncertainties.

Original languageEnglish
Article number6978170
JournalInternational Journal of Aerospace Engineering
Volume2018
DOIs
StatePublished - 2018

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