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.
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Kwon, O.M., Park, J.H. & Lee, S.M. Secure communication based on chaotic synchronization via interval time-varying delay feedback control. Nonlinear Dyn 63, 239–252 (2011). https://doi.org/10.1007/s11071-010-9800-9
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DOI: https://doi.org/10.1007/s11071-010-9800-9