Abstract
In this paper, a synchronization method of Lur'e systems for chaotic secure communication systems with interval time-varying delay feedback control is proposed. To increase communication security, the transmitted message is encrypted with the techniques of N-shift cipher and public key. Based on Lyapunov method and linear matrix inequality (LMI) formulation, new delay-dependent synchronization criteria are established to not only guarantee stable synchronization of both transmitter and receiver systems but also recover the transmitted original signal at the receiver. Throughout a numerical example, the validity and superiority of the proposed method are shown.
Original language | English |
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Pages (from-to) | 239-252 |
Number of pages | 14 |
Journal | Nonlinear Dynamics |
Volume | 63 |
Issue number | 1-2 |
DOIs | |
State | Published - Jan 2011 |
Keywords
- Chaotic system
- Interval time-varying delays
- LMI
- Lyapunov method
- Secure communication