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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 which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

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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