Laplace domain controllers for chaos control

A Laplace domain controller and its application to the chaos control are pr esented:. The controller has three feedback parts: (i) proportional action, (ii) integral action and (iii) quadratic integral action. The first one yi elds a feedback signal proportional to the control error. The second one in cludes a reset action. The last part provides a dynamic estimation of the e xternal signal. The problem of the suppression and stabilization can be add ressed using the proposed feedback. Numerical simulations show the practica l implementation is possible. (C) 1999 Published by Elsevier Science B.V.