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Sensors 2013, 13(2), 2494-2505; doi:10.3390/s130202494
Article

Hardware Implementation of Lorenz Circuit Systems for Secure Chaotic Communication Applications

1
,
1
 and
2,*
1 Department of Biomedical Engineering, Hungkuang University, Taichung 43302, Taiwan 2 Department of Electrical Engineering, Far East University, Tainan 74448, Taiwan
* Author to whom correspondence should be addressed.
Received: 4 January 2013 / Revised: 7 February 2013 / Accepted: 8 February 2013 / Published: 18 February 2013
(This article belongs to the Section Physical Sensors)
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Abstract

This paper presents the synchronization between the master and slave Lorenz chaotic systems by slide mode controller (SMC)-based technique. A proportional-integral (PI) switching surface is proposed to simplify the task of assigning the performance of the closed-loop error system in sliding mode. Then, extending the concept of equivalent control and using some basic electronic components, a secure communication system is constructed. Experimental results show the feasibility of synchronizing two Lorenz circuits via the proposed SMC.
Keywords: sliding mode controller (SMC); secure communication system; proportional-integral (PI) sliding mode controller (SMC); secure communication system; proportional-integral (PI)
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).
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Chen, H.-C.; Liau, B.-Y.; Hou, Y.-Y. Hardware Implementation of Lorenz Circuit Systems for Secure Chaotic Communication Applications. Sensors 2013, 13, 2494-2505.

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