We discuss the pole placement problem for single-input or multi-input control models of the form _ x = Ax + Bu. This is the problem of determining a linear state feedback of the form u = Fx such that in the closed-loop system _ x = (A + BF)x, the matrix A + BF has a prescribed set of eigenvalues. We analyze the conditioning of this problem and show that it is an intrinsically ill-conditioned pr...

In high-maneuvering missile systems, with severe restrictions on actuator energy requirements, it is desirable to achieve the required performance least actuation effort. Linear Quadratic Regulator (LQR) has been in literature for long and proven it’s mettle as an optimal controller many benign aerospace applications industrial where response times of plant, most cases, are seen be greater than...

 The ADRC tuning is essentially a pole-placement technique and the desired performance is indirectly achieved through the location of the closed-loop poles. However, the final choice of these poles becomes a trial-and-error strategy. In contrast with pole-placement, in the LQR method, the desired performance objectives are directly and globally addressed by minimizing a quadratic function of ...

The output feedback pole placement problem of linear systems with static or dynamic compensators belongs to the classical problems in control theory and many theoretical and numerical research papers were already devoted to this problem. Although the considered systems are linear, the problem requires the solution of an over determined system of quadratic polynomial equations. A lot of progress...

A novel intelligent multiple-controller framework incorporating a fuzzy-logic based switching supervisor is presented for adaptive control of non-linear systems . The proposed methodology provides the designer with an automated choice of using either: a conventional Proportional-Integral-Derivative (PID) controller, a PID structure based pole (only) placement controller, or a PID structure base...

This paper describes the practical application of the receptance method for active vibration control of real structures. The method uses in general the measured transfer function between the input/output data including the dynamics of the actuators and sensors. Therefore, it does not require knowledge or evaluation of the system matrices M, C, K, which usually contain modeling errors. This woul...

This paper is concerned with the design problem for linear system. For a class of linear systems relation to the sector region pole placement, we put forward the concept of gain fault safety interval for each actuator channel. By using mathematical model of gain fault with single actuator channel, we present the algorithm of the actuator gain fault safety interval in the representative sector p...