吉林大学学报(工学版) ›› 2003, Vol. ›› Issue (3): 60-63.

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Chaotic synchronization of Lorenz systems and secure communication

HUANG Bao-xing   

  1. School of Physics and Information Engineering, Jianghan University, Wuhan 430056, China
  • Received:2003-01-04

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Abstract: The chaotic synchronization of Lorenz systems are investigated via a nonlinear feedback method.The stability in zero of the error dynamical system of the two Lorenz systems is verified by the second Lyapunov method.The synchronization conditions are that two systems have the same equation construction and the same parameters and no relation to the initial values of the response system.A schem of chaotic communication based on the chaotic synchronization is presented.The message signals is mixed to the chaotic drive signals to be the pretend transmitted signals.The equation construction and the parameters of the response system can be the cipher based on the synchronization to control the synchronization of two systems.The message signals are recovered and the secure communication is achieved.

Key words: chaotic synchronization, drive system, response system, cipher key

CLC Number: 

  • O415
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