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Title: A gain-varying UIO approach with adaptive threshold for FDI of nonlinear F16 systems
Authors: Xu, J. 
Lum, K.Y. 
Loh, A.P. 
Keywords: Fault detection and isolation (FDI)
Nonlinear estimation
Unknown input observer (UIO)
Issue Date: 2010
Citation: Xu, J.,Lum, K.Y.,Loh, A.P. (2010). A gain-varying UIO approach with adaptive threshold for FDI of nonlinear F16 systems. Journal of Control Theory and Applications 8 (3) : 317-325. ScholarBank@NUS Repository.
Abstract: A discrete gain-varying unknown input observer (UIO) method is presented for actuator fault detection and isolation (FDI) problems in this paper. A novel residual scheme together with a moving horizon threshold is proposed. This design methodology is applied to a nonlinear F16 system with polynomial aerodynamics coefficient expressions, where the coefficient expressions for the F16 system and UIOs may be slightly different. The simulation results illustrate that a satisfactory FDI performance can be achieved even when the F16 system is under the environment of model uncertainties, exogenous noise and measurement errors. © 2010 South China University of Technology, Academy of Mathematics and Systems Science, Chinese Academy of Sciences and Springer-Verlag Berlin Heidelberg.
Source Title: Journal of Control Theory and Applications
ISSN: 16726340
DOI: 10.1007/s11768-010-0021-z
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