Einladung zum Vortrag im Kolloquium Technische Kybernetik

On the notion of steady-state response for nonlinear systems

Prof. Alberto Isidori
Universita die Roma "La Sapienza"
Rome
Italy

    Zeit: Dienstag· 15. 01. 2008 · 16:00 Uhr
    Ort: IST-Seminarraum 3.241 · Pfaffenwaldring 9 · Campus Stuttgart-Vaihingen

Abstract

The purpose of this lecture is to describe how the classical notion of steady-state response can be extended to the case of nonlinear systems and why the proposed extension is useful in problems of analysis and design. The proposed approach reposes on a suitable enhancement of the classical concept of limit set in the theory of dynamical system and finds applications in various major problems arising in feedback design. The proposed new framework provides a unified interpretation of a number of familiar concepts associated with the intuitive idea of steady-state for linear systems and provides an effective tool to address various outstanding problem of asymptotic analysis and design for nonlinear systems. Examples will be presented showing how the concepts thus developed play an important role in the analysis of high-gain output feedback closed-loop systems, in the problem of asymptotic tracking and/or rejection of exogenous inputs, and in the design of nonlinear observers.

Biographical Information

Alberto Isidori is one of the fathers of the geometric approach to nonlinear control that has started to revolutionize the field of nonlinear control some 30 years ago. Since then he has made numerous fundamental contributions to nonlinear control that are now considered the foundations of the discipline. Prof. Isidori was educated in electrical engineering at the University of Rome where he also became a professor in 1975. Since 1989 he has also held a parttime position in the Department of Electrical and Systems Engineering at Washington University in St. Louis. He is author of several highly influential books and has received numerous major prices for his work, including the Giorgio Quazza Medal. This medal is the highest technical award given by the International Federation of Automatic Control.