Reduction of linear systems by canonical forms

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Reduction of linear systems by canonical forms

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A new companion-type realisation of a rational transfer function is introduced. This form is then used for obtaining a reduced-order model. It is possible, using this approach, to simultaneously match time moments, Markov parameters and to retain desired poles, thus combining the methods of partial realisation (Padé approximation) and aggregation.

Inspec keywords: Markov processes; modelling; linear systems; transfer functions; poles and zeros

Other keywords: canonical forms; linear systems; rational transfer function; reduced order model; companion type realisation; Markov parameters; poles

Subjects: Control system analysis and synthesis methods

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