Implementation of synchronized chaotic Lü systems and its application in secure communication using PSO-based PI controller

Jen Fuh Chang, Teh-Lu Liao, Jun Juh Yan, Hsin Chieh Chen

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

This paper investigates the synchronization of chaotic systems and its application in secure communication. First, a particle swarm optimization (PSO)-based proportional-integral (PI) controller is proposed for synchronization of general chaotic systems. By using the PSO algorithm, optimal control gains in PI controller are derived such that a performance index of integrated squared error (ISE) is as minimal as possible and synchronization can be achieved. Then a chaotic secure communication system based on synchronized coupled Lü systems is implemented using basic electronic components. Finally, both simulation results and the experimental results demonstrate the proposed PSO-based PI scheme's success in the secure communication application.

Original languageEnglish
Pages (from-to)527-538
Number of pages12
JournalCircuits, Systems, and Signal Processing
Volume29
Issue number3
DOIs
Publication statusPublished - 2010 Jun 1

All Science Journal Classification (ASJC) codes

  • Signal Processing
  • Applied Mathematics

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