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Open AccessArticle

Lag Synchronization of Complex Lorenz System with Applications to Communication

School of Electrical Engineering and Automation, Qilu University of Technology, Jinan 250353, China
Academic Editor: Raúl Alcaraz Martínez
Entropy 2015, 17(7), 4974-4985; https://doi.org/10.3390/e17074974
Received: 25 March 2015 / Revised: 26 June 2015 / Accepted: 2 July 2015 / Published: 15 July 2015
(This article belongs to the Section Information Theory, Probability and Statistics)
In communication, the signal at the receiver end at time t is the signal from the transmitter side at time t −Τ (Τ ≥ 0 and it is the lag time) as the time lag of transmission. Therefore, lag synchronization (LS) is more accurate than complete synchronization to design communication scheme. Taking complex Lorenz system as an example, we design the LS controller according to error feedback. Using chaotic masking, we propose a communication scheme based on LS and independent component analysis (ICA). It is suitable to transmit multiple messages with all kinds of amplitudes and it has the ability of anti-noise. Numerical simulations verify the feasibility and effectiveness of the presented schemes. View Full-Text
Keywords: lag synchronization; complex chaotic system; communication; error feedback lag synchronization; complex chaotic system; communication; error feedback
MDPI and ACS Style

Zhang, F. Lag Synchronization of Complex Lorenz System with Applications to Communication. Entropy 2015, 17, 4974-4985.

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