Discrete modelling of uncertain continuous systems having an interval structure using higher-order integrators

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Title:	Discrete modelling of uncertain continuous systems having an interval structure using higher-order integrators
Authors:	許陳鑑
Contributors:	淡江大學電機工程學系
Date:	2000-10
Issue Date:	2011-10-15 00:50:58 (UTC+8)
Abstract:	In this paper, a higher-order integrator approach is proposed to obtain an approximate discrete-time transfer function for uncertain continuous systems having interval uncertainties. Because of the simple algebraic operations of this approach, the resulting discrete model is a rational function of the uncertain parameters. The problem of non-linearly coupled coefficients with exponential nature occurring in the exact discretetime transfer function is therefore circumvented. Furthermore, the interval structure of the uncertain continuous-time system is preserved in the resulting discrete model by using this approach. Formulae to obtain the lower and upper bounds for the coefficients of the discrete interval system are derived, so that digital simulation and design for the uncertain continuous systems can be performed by using the available robustness results in the discrete-time domain.
Relation:	International Journal of Systems Science 31(4), pp.467-477
DOI:	10.1080/002077200291055
Appears in Collections:	[Graduate Institute & Department of Electrical Engineering] Journal Article

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