This paper investigates the chaos synchronisation between two coupled chaotic Chua's circuits.The sufficient condition presented by linear matrix inequalities(LMIs) of global asymptotic synchronisation is attained based on piecewise quadratic Lyapunov functions.First,we obtain the piecewise linear differential inclusions(pwLDIs) model of synchronisation error dynamics,then we design a switching(piecewise-linear) feedback control law to stabilise it based on the piecewise quadratic Laypunov functions.Then we give some numerical simulations to demonstrate the effectiveness of our theoretical results.
This paper studies the problem of robust H_∞control of piecewise-linear chaotic systems with random data loss. The communication links between the plant and the controller are assumed to be imperfect(that is,data loss occurs intermittently,which appears typically in a network environment).The data loss is modelled as a random process which obeys a Bernoulli distribution.In the face of random data loss,a piecewise controller is designed to robustly stabilize the networked system in the sense of mean square and also achieve a prescribed H_∞disturbance attenuation performance based on a piecewise-quadratic Lyapunov function.The required H_∞controllers can be designed by solving a set of linear matrix inequalities(LMIs).Chua's system is provided to illustrate the usefulness and applicability of the developed theoretical results.
