Pole placement is the only PID-tuning technic that allows one to obtain a control system with desired, and, moreover, highly predictable performance and quality. Number of controller tuning parameters equal number poles closed-loop it can precicely place, so PID-controller place exactly three poles, PI- two. For this reason PI-controller best used first-order processes (second-order closed loop...

Pole placement represents a classical method for controlling finite-dimensional linear time-invariant systems, largely covered in the open literature. Basically, it consists of placing poles closed-loop system some predetermined loci complex plane. This paper discusses extensions this to systems described by delay-differential equations. Among others, finite spectrum assignment (FSA), continuou...

This paper is about minimum cost constrained selection of inputs and outputs in structured systems for generic arbitrary pole placement. The input-output set is constrained in the sense that the set of states that each input can influence and the set of states that each output can sense is pre-specified. Our goal is to optimally select an input-output set that the system has no structurally fix...

An important factor affecting the performance of modulators is their tone behavior. A recent approach to alleviate the tone problem consists of moving the open-loop poles outside the unit circle. In this paper, we determine the frequency location of two dominant tones as a function of pole-location, and discuss the effect of pole location on the relative amplitude of low-frequency tones. Audio ...

In this paper we present a Takagi-Sugeno (T-S) model for Quadrotor modelling. This model is developed using multiple model approach, composed of three locally accurate models valid in different region of the operating space. It enables us to model the global nonlinear system with some degree of accuracy. Once the T-S model has been defined it is claimed to be relatively straightforward to desig...

We consider linear systems withm inputs, p outputs and McMillan degree n, such that n = mp. If both m and p are even, we show that there is a non-empty open (in the usual topology) subset U of such systems, where the real pole placement map is not surjective. It follows that for each system in U , there exists an open set of pole configurations, symmetric with respect to the real line, which ca...

In this paper we consider the problem of system assignment for the class of linear output feedback systems having symmetric state space realisations. For such systems the classical pole placement task can be considered as a degenerate case of a more general system assignment problem. It is shown that a symmetric state space realisation can be assigned arbitrary (real) poles via output feedback ...

Continuous-time systems with random state feedback delay are difficult to control in general because of its infinite poles. In this paper, the act-and-wait controller is well developed to solve this problem. If the infinite dimensional pole placement problem can be reduced to a finite dimensional one, it would be facility to make the system stable by the aid of pole placement method. The mechan...