Chinese Journal of Physics

A Digital Secure Communication Scheme Based on Parameter Modulation and Filtering

Mingjun Wang, Xingyuan Wang, Yujun Niu

Published Oct 1, 2010• 1 citation

Abstract

Based on a parameter identification, a parameter observer is designed for the time-delay Mackey-Glass hyperchaotic system. An unknown parameter c of this system can be identified by transmitting a single signal to the receiver, then the message signal modulated in the parameter will be recovered successfully. By choosing different frequency signals as ”0” and ”1”, a practical digital secure communication scheme is designed. Numerical simulations show the effectiveness of the method.

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