摘要
Projective synchronization in modulated time-delayed systems is studied by applying an active control method.Based on the Lyapunov asymptotical stability theorem,the controller and sufficient condition for projective synchronization are calculated analytically.We give a general method with which we can achieve projective synchronization in modulated time-delayed chaotic systems.This method allows us to adjust the desired scaling factor arbitrarily.The effectiveness of our method is confirmed by using the famous delay-differential equations related to optical bistable or hybrid optical bistable devices.Numerical simulations fully support the analytical approach.
作者
冯存芳
汪映海
FENG Cun-Fang;WANG Ying-Hai(School of Electronic and Electrical Engineering,Wuhan Textile University,Wuhan 430073;Institute of Theoretical Physics,Lanzhou University,Lanzhou 730000)
基金
Supported by the Research Project of Hubei Provincial Department of Education under No Q20101609
the Foundation of Wuhan Textile University under No 105040.