Scientific Research Publishing

Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=54193#.VPAx_CzQrzE Author(s)    Da Lin 1* , Hong Song 1 , Yi Yao 1 , Fuchen Zhang 2 Affiliation(s) 1 School of Automatic and Electronic Information, Sichuan University of Science and Engineering, Zigong, China . 2 College of Mathematics and Statistics, Chongqing Technology and Business University, Chongqing, China . ABSTRACT This paper studies the problem of isochronal synchronization of chaotic systems with time-delayed mutual coupling. Based on the invariance principle of differential equations, an adaptive feedback scheme is proposed for the stability of isochronal synchronization between two identical chaotic systems. Un...

Read  full  paper  at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=54193#.VO7KwyzQrzE Author(s)    Da Lin 1* , Hong Song 1 , Yi Yao 1 , Fuchen Zhang 2   Affiliation(s) 1 School of Automatic and Electronic Information, Sichuan University of Science and Engineering, Zigong, China . 2 College of Mathematics and Statistics, Chongqing Technology and Business University, Chongqing, China . ABSTRACT This paper studies the problem of isochronal synchronization of chaotic systems with time-delayed mutual coupling. Based on the invariance principle of differential equations, an adaptive feedback scheme is proposed for the stability of isochronal synchronization between two identical chaotic systems. Unlike the usual linear feedback, the variable feedback strength is automatically adapted to isochronally synchronize two identical chaotic systems with delay-coupled, so this scheme is analytical, and simple to implement i...

Read  full  paper  at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=53167#.VLcvksnQrzE Author(s)   Nizar J. Ahmad * , Mahmud J. Alnaser , Ebraheem Sultan , Khuloud A. Alhendi Affiliation(s) Faculty of Electronic Engineering Technology, College of Technological Studies, The Public Authority for Applied Education and Training (PAAET), Kuwait City, Kuwait . ABSTRACT This paper presents a robust adaptive control scheme for a class of continuous-time linear systems with unknown non-smooth asymmetrical deadzone nonlinearity at the input of the plant. The methodology is applied to handle input deadzone as well as unmeasurable disturbances simultaneously in strictly matched systems. The proposed controller robustly cancels any residual distortion caused by the inaccurate deadzone cancellation scheme. The scheme is shown to successfully cancel the deadzone’s deleterious effect as well as eliminate other unmeasurable disturbances ...