Secure synchronization of a class of chaotic systems from a nonlinear observer approach

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

95 Scopus Citations
View graph of relations


Related Research Unit(s)


Original languageEnglish
Pages (from-to)76-82
Journal / PublicationIEEE Transactions on Automatic Control
Issue number1
Publication statusPublished - Jan 2005


The aim of this note is two-fold. First, it discusses synchronization of chaotic systems from a control theoretic point of view and introduces the concept of secure synchronization, i.e., a communication scheme that resists possible intrusion based on either adaptive or robust control techniques. Second, for a large class of chaotic systems, i.e., the generalized Lorenz system, global exponential synchronization via a scalar communication signal is suggested and its security is analyzed from a control theoretic viewpoint. Both theoretical analysis and numerical simulations are provided, verifying the proposed chaos-synchronization-based secure communication design principle and methodology. © 2005 IEEE.

Research Area(s)

  • Chaos, Nonlinear system, Observer, Secure communication, Synchronization