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arXiv · 0910.3619

On the Computation of $π$-Flat Outputs for Linear Time-Delay Systems

Vincent Morio·Franck Cazaurang·Jean Lévine
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Abstract

This paper deals with linear time-varying, delay systems. Extensions of the concept of differential flatness \cite{Fliess_95} to this context have been first proposed in \cite{Mounier_95,Fliess_96} (see also \cite{Rudolph_03,Chyzak_05}), by the introduction of $π$-flat output. Roughly speaking, it means that every system variable may be expressed as a function of a particular output $y$, a finite number of its time derivatives, time delays, and predictions, the latter resulting from the prediction operator $π^{-1}$. We propose a simple and constructive algorithm for the computation of $π$-flat outputs based on concepts of polynomial algebra, in particular Smith-Jacobson decomposition of polynomial matrices. Some examples are provided to illustrate the proposed methodology.

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Vincent Morio, Franck Cazaurang, Jean Lévine. 2010-12-31. On the Computation of $π$-Flat Outputs for Linear Time-Delay Systems. https://arxiv.org/abs/0910.3619

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