A Parameterization of Stabilizing Controllers over Commutative Rings

Details A Parameterization of Stabilizing Controllers over Commutative Rings A Parameterization of Stabilizing Controllers over Commutative Rings

1999-08-17

arxiv.org/abs/math/9908087v2

Mathematics

Optimization and Control

14 pages, 1 Postscript figure, LaTeX

Scientific paper

We present a parameterization of the stabilizing controllers over commutative rings. In the classical case, that is, in the case where there exist the right-/left-coprime factorizations of the given plant, the stabilizing controllers can be parameterized by the method called ``Youla-Kucera-parameterization''. However, it is known that there exist models in which some stabilizable transfer matrices do not have their right-/left-coprime factorizations. In such models, we cannot employ the Youla-Kucera-parameterization directly. Our method of this paper can be applied to even such models.

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