Backstepping sliding-mode control of stratospheric airships using disturbance-observer

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dc.contributor.authorLiu, Shi Qian
dc.contributor.authorWhidborne, James F.
dc.contributor.authorHe, Lei
dc.date.accessioned2020-11-23T16:15:09Z
dc.date.available2020-11-23T16:15:09Z
dc.date.issued2020-11-16
dc.description.abstractIn the presence of unknown disturbances and model parameter uncertainties, this paper develop a nonlinear backstepping sliding-mode controller (BSMC) for trajectory tracking control of a stratospheric airship using a disturbance-observer (DO). Compared with the conventional sliding mode surface (SMS) constructed by a linear combination of the errors, the new SMS manifold is selected as the last back-step error to improve independence of the adjustment of the controller gains. Furthermore, a nonlinear disturbance-observer is designed to process unknown disturbance inputs and improve the BSMC performances. The closed-loop system of trajectory tracking control plant is proved to be globally asymptotically stable by using Lyapunov theory. By comparing with traditional backstepping control and SMC design, the results obtained demonstrate the capacity of the airship to execute a realistic trajectory tracking mission, even in the presence of unknown disturbances, and aerodynamic coefficient uncertaintiesen_UK
dc.identifier.citationLiu SQ, Whidborne JF, He L. (2021) Backstepping sliding-mode control of stratospheric airships using disturbance-observer. Advances in Space Research, Volume 67, Issue 3, February 2021, pp. 1174-1187en_UK
dc.identifier.issn0273-1177
dc.identifier.urihttps://doi.org/10.1016/j.asr.2020.10.047
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/16027
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjecttrajectory trackingen_UK
dc.subjectbackstepping controlen_UK
dc.subjectnonlinear disturbance observeren_UK
dc.subjectsliding mode controlen_UK
dc.subjectstratospheric airship systemen_UK
dc.titleBackstepping sliding-mode control of stratospheric airships using disturbance-observeren_UK
dc.typeArticleen_UK

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