Sangam: A Confluence of Knowledge Streams

Finite-horizon estimation of randomly occurring faults for a class of nonlinear time-varying systems

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dc.creator Dong, H
dc.creator Wang, Z
dc.creator Ding, SX
dc.creator Gao, H
dc.date 2015-01-16T12:24:36Z
dc.date 2014-12-01
dc.date 2015-01-16T12:24:36Z
dc.date 2014
dc.date.accessioned 2022-05-25T14:53:37Z
dc.date.available 2022-05-25T14:53:37Z
dc.identifier Automatica, 50:12, pp. 3182 - 3189, 2014
dc.identifier 0005-1098
dc.identifier http://www.sciencedirect.com/science/article/pii/S0005109814004075
dc.identifier http://bura.brunel.ac.uk/handle/2438/9770
dc.identifier http://dx.doi.org/10.1016/j.automatica.2014.10.026
dc.identifier.uri http://localhost:8080/xmlui/handle/CUHPOERS/172681
dc.description This paper is concerned with the finite-horizon estimation problem of randomly occurring faults for a class of nonlinear systems whose parameters are all time-varying. The faults are assumed to occur in a random way governed by two sets of Bernoulli distributed white sequences. The stochastic nonlinearities entering the system are described by statistical means that can cover several classes of well-studied nonlinearities. The aim of the problem is to estimate the random faults, over a finite horizon, such that the influence from the exogenous disturbances onto the estimation errors is attenuated at the given level quantified by an H∞-norm in the mean square sense. By using the completing squares method and stochastic analysis techniques, necessary and sufficient conditions are established for the existence of the desired finite-horizon H∞ fault estimator whose parameters are then obtained by solving coupled backward recursive Riccati difference equations (RDEs). A simulation example is utilized to illustrate the effectiveness of the proposed fault estimation method.
dc.language eng
dc.language en
dc.publisher Elsevier Ltd
dc.relation Automatica
dc.relation Automatica
dc.subject Fault estimation
dc.subject Nonlinear stochastic systems
dc.subject Randomly occurring faults
dc.subject Recursive
dc.subject Riccati difference equations
dc.subject Time-varying systems
dc.title Finite-horizon estimation of randomly occurring faults for a class of nonlinear time-varying systems
dc.type Article


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