Acta Physica Sinica

A secure communication scheme based on parameter identification of first order time-delay chaotic system

Mingjun Wang, Xingyuan Wang, 大连理工大学电子与信息工程学院，大连 116024

Published Jan 1, 2009• 6 citations

Abstract

Based on parameter modulation theory，a parameter observer is designed for the first order time-delay Logistic chaotic system. The unknown parameter of this system can be identified by transmitting a single signal，then the useful signal modulated in the parameter will be recovered successfully. By choosing different frequency signals as “0" and “1"，a practical digital secure communications scheme is designed. Numerical simulation shows the effectiveness of the method.

DOI: 10.7498/aps.58.1467

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