This paper presents necessary and sufficient conditions for the following problem: given a linear time invariant plant G(s) = N(s)D(s) <sup>-1</sup> = C(sI -A)<sup>-1</sup>B, with m inputs, p… (More)

In this paper we use the Hermite-Biehler theorem to establish results for the design of proportional plus integral plus derivative (PID) controllers concerning a class of time delay systems. Using… (More)

In some practical problems, for instance in the control systems for the suppression of vibration in mechanical systems, the state-derivative signals are easier to obtain than the state signals. A new… (More)

2008 International Workshop on Variable Structure…

2008

This paper presents two variable structure controllers (VSC) for continuous-time switched plants. It is assumed that the state vector is available for feedback. The proposed control system provides a… (More)

This paper describes a mathematical study about chaotic system and about the unified approach of chaos control via fuzzy control system based in linear matrix inequality to design a controller which… (More)

2008 International Workshop on Variable Structure…

2008

New linear matrix inequalities (LMI) conditions are proposed for the following problem, called strictly positive real (SPR) synthesis: given a linear time-invariant plant, find a constant output… (More)