Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China; Department of Physics and Electronic Science, Guangxi Normal University, Guilin 541004, China
Abstract:
A method that allows one to control chaotic and hyperchaotic systems by a random proportional pulse feedback of system variables is proposed. This method is illustrated with the Rossler chaotic and the complex Lorenz-Harken hyperchaotic systems, and a better control result is obtained. The advantage of this method is that just one perturbed system variable is enough to obtain a stabilized periodic orbit.