Master-slave global stochastic synchronization of chaotic oscillators

Maurizio Porfiri, Roberta Pigliacampo

Research output: Contribution to journalArticlepeer-review


We study global synchronization of coupled chaotic systems with random intermittent coupling.e use stochastic Lyapunov stability theory and partial averaging techniques to show that global synchronization is possible if the switching period is sufficiently small and if the oscillators globally synchronize under a time-averaged coupling. We study mean square and almost sure global synchronization, and we determine quantitative bounds for the exponential rate of decay of the synchronization error. We focus on master-slave synchronization, where two dynamical systems are coupled via a directed feedback that randomly switches among a finite set of given constant functions at a prescribed time rate. We apply the proposed approach to the synchronization of Chua circuits.

Original languageEnglish (US)
Pages (from-to)825-842
Number of pages18
JournalSIAM Journal on Applied Dynamical Systems
Issue number3
StatePublished - 2008


  • Chaos
  • Chua circuit
  • Exponential stability
  • Global synchronization
  • Master-slave synchronization
  • Stochastic synchronization

ASJC Scopus subject areas

  • Analysis
  • Modeling and Simulation


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