Sparse online Gaussian process adaptation for incremental backstepping flight control

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dc.contributor.authorIgnatyev, Dmitry I.
dc.contributor.authorShin, Hyosang
dc.contributor.authorTsourdos, Antonios
dc.date.accessioned2023-03-21T16:33:27Z
dc.date.available2023-03-21T16:33:27Z
dc.date.issued2023-02-28
dc.description.abstractPresence of uncertainties caused by unforeseen malfunctions in actuation or measurement systems or changes in aircraft behaviour could lead to aircraft loss-of-control during flight. This paper considers sparse online Gaussian Processes (GP) adaptive augmentation for Incremental Backstepping (IBKS) flight control. IBKS uses angular accelerations and control deflections to reduce the dependency on the aircraft model. However, it requires knowledge of the relationship between inner and outer loops and control effectiveness. Proposed indirect adaptation significantly reduces model dependency. Global uniform ultimate boundness is proved for the resultant GP adaptive IBKS. Conducted research shows that if the input-affine property is violated, e.g., in severe conditions with a combination of multiple failures, the IBKS can lose stability. Meanwhile, the proposed sparse GP-based estimator provides fast online identification and the resultant controller demonstrates improved stability and tracking performance.en_UK
dc.identifier.citationIgnatyev DI, Shin H-S, Tsourdos A. (2023) Sparse online Gaussian process adaptation for incremental backstepping flight control. Aerospace Science and Technology, Volume 136, May 2023, Article number 108157en_UK
dc.identifier.issn1270-9638
dc.identifier.urihttps://doi.org/10.1016/j.ast.2023.108157
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/19336
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectGaussian processesen_UK
dc.subjectAdaptive controlen_UK
dc.subjectParameter estimationen_UK
dc.subjectIncremental backsteppingen_UK
dc.subjectFailuresen_UK
dc.subjectFault-tolerant controlen_UK
dc.titleSparse online Gaussian process adaptation for incremental backstepping flight controlen_UK
dc.typeArticleen_UK

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