In this paper, the improvement of the parametric stability margin of state-space uncertain systems via a maximization formulation under the constraints of pole assignment is investigated. The class of systems considered is where the uncertainty may be modeled as the, possibly nonlinear, variation of a parameter appearing in the entries of the system and input matrices. The continuity and differ...

The paper deals with a novel method of control system design which applies meromorphic transfer functions as models for retarded linear time delay systems. After introducing an auxiliary state model a finite-spectrum observer is designed to close a stabilizing state feedback. The observer finite spectrum is the key to implement a state feedback stabilization scheme and to apply the affine param...

We give a new sufficient condition for the arbitrary pole assignability of a system by decentralized dynamic compensators. Using such condition we are able to derive a new bound on the degrees of decentralized dynamic compensators so that the generic systems have the arbitrary pole assignability.

This study provides a design procedure for the self tuning adaptive control of a CD arm controller. The inputs are the forces of the mechanical actuators while the outputs are related to the tracking accuracy of the arm. The data was measured in closed loop, and then through a two-step procedure converted to open loop equivalent data the inputs are highly colored. Rely on the obtained model, th...

The paper is focused on an application of self – tuning decoupling controllers for real – time control of a multivariable coupled drives apparatus. The controlled apparatus is a multivariable nonlinear system. Two control algorithms based on polynomial theory and pole – placement are proposed. Decoupling compensators are used to suppress interactions between control loops. The controllers integ...

The paper is focused on a design and implementation of a decoupling multivariable controller. The controller was designed in both discrete and continuous-time versions. The control algorithm is based on polynomial theory and pole – placement. A decoupling compensator is used to suppress interactions between control loops. The controller integrates an on – line identification of an ARX model of ...

In this paper, we describe a stabilization method for linear time-delay systems which extends the classical pole placement method for ordinary di7erential equations. Unlike methods based on :nite spectrum assignment, our method does not render the closed loop system, :nite dimensional but consists of controlling the rightmost eigenvalues. Because these are moved to the left half plane in a (qua...