In this paper, we introduce a general descriptor-type linear fractional transformation (LFT) representation of rational parametric matrices. This is a generalized representation of arbitrary rationally dependent multivariate functions in LFT-form. As applications, we develop explicit LFT-realizations of the transfer-function matrix of a linear descriptor system whose state-space matrices depend rationally on a set of uncertain parameters. The resulting descriptor LFT-based uncertainty models generally have smaller orders than those obtained by using the standard LFT-based modelling approach. An example of an uncertain vehicle model illustrates the capability of the method.
Generalized LFT-Based Representation of Parametric Uncertain Models
European Journal of Control ; 10 , 4 ; 326-337
2004
Article (Journal)
Electronic Resource
English
Generalized LFT-Based Representation of Parametric Uncertain Models
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