Europhys. Lett.
Volume 69, Number 6, March 2005
Page(s) 886 - 892
Section General
Published online 09 February 2005
Europhys. Lett., 69 (6), pp. 886-892 (2005)
DOI: 10.1209/epl/i2004-10429-5

Chaos synchronization based on quadratic optimum regulation and control

Lihua Gong

Department of Physics, Daxian Teachers College - Dazhou, SiChuan, 635000, PRC

received 8 September 2004; accepted in final form 13 January 2005
published online 9 February 2005

Based on the method of the quadratic optimum control, a quadratic optimal regulator used for synchronizing chaotic systems is constructed to realize chaos synchronization. The synchronization method can maintain the least error with less control energy, and then realize the optimization on both sides of energy and error synthetically. In addition, the control cost can also be reduced by using this method intermittently. The simulation results of the chaotic Chua's circuit and the Rossler chaos system prove that the method is effective.

05.45.Xt - Synchronization; coupled oscillators.
05.45.Pq - Numerical simulations of chaotic systems.
05.45.Gg - Control of chaos, applications of chaos.

© EDP Sciences 2005