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Finite-Time Control of Uncertain Linear Systems Using Statistical Learning Methods

Summary: Finite-Time Control of Uncertain Linear Systems Using Statistical
Learning Methods
C.T. Abdallah
, F. Amato
, M. Ariola
, P. Dorato
, V. Koltchinskiiž
In this paper we show how some difficult linear algebra problems can be "approximately" solved using
statistical learning methods. We illustrate our results by considering the state and output feedback,
finite-time robust stabilization problems for linear systems subject to time-varying norm-bounded un-
certainties and to unknown disturbances. In the state feedback case, we have obtained in an earlier
paper, a sufficient condition for finite-time stabilization in the presence of time-varying disturbances;
such condition requires the solution of a Linear Matrix Inequality (LMI) feasibility problem, which is by
now a standard application of linear algebraic methods. In the output feedback case, however, we end up
with a Bilinear Matrix Inequality (BMI) problem which we attack by resorting to a statistical approach.
Keywords: Finite-Time Stability, LMIs, Disturbance Rejection, Statistical Learning Control.
1 Introduction
The interplay between linear algebra and linear control theory has been long and fruitful [4]. Until very
recently, it was actually felt that most linear control problems can be solved using linear algebraic concepts,


Source: Abdallah, Chaouki T- Electrical and Computer Engineering Department, University of New Mexico


Collections: Engineering