Original Paper

Nonlinear Dynamics

, Volume 71, Issue 3, pp 469-478

Lag quasisynchronization of coupled delayed systems with parameter mismatch by periodically intermittent control

  • Junjian HuangAffiliated withCollege of Computer Science, Chongqing UniversityDepartment of Computer Science, Chongqing University of Education Email author 
  • , Chuandong LiAffiliated withCollege of Computer Science, Chongqing University
  • , Tingwen HuangAffiliated withTexas A & M University at Qatar
  • , Qi HanAffiliated withCollege of Computer Science, Chongqing University

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Abstract

This paper further investigates the lag synchronization of coupled delayed systems with parameter mismatch. Different from the most existing results, we formulate the intermittent control system that governs the dynamics of the synchronization error. As a result of parameter mismatch, complete lag synchronization cannot be achieved. In this paper, a lag quasisynchronization scheme is proposed to ensure that coupled systems are in a state of lag synchronization with an error level. We estimate the error bound of lag synchronization by rigorously theoretical analysis. Numerical simulations are presented to verify the theoretical results.

Keywords

Chaotic systems Intermittent control Lag quasisynchronization Parameter mismatch Time delay