Chaos synchronization and transmission of information in coupled SC-CNN-based canonical Chua’s circuit

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• 作者：P. S. Swathy ; S. Sabarathinam ; K. Suresh ; K. Thamilmaran
• 关键词：CNN ; Canonical Chua’s circuit ; Synchronization ; Communication
• 刊名：Nonlinear Dynamics
• 出版年：2014
• 出版时间：October 2014
• 年：2014
• 卷：78
• 期：2
• 页码：1033-1047
• 全文大小：4,588 KB
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• 作者单位：P. S. Swathy (1)
  S. Sabarathinam (1)
  K. Suresh (1)
  K. Thamilmaran (1)
  
  1. Centre for Nonlinear Dynamics, School of Physics, Bharathidasan University, Tiruchirappalli, 620 024, India
  
• ISSN：1573-269X

文摘

In this paper, an experimental implementation of State Controlled Cellular Neural Network (SC-CNN)-based canonical Chua’s circuit is presented. Two such electronic circuits are realized. One of the circuits is configured as driver or transmitter, and other circuit is configured as response or receiver system. Synchronization of chaos between the driver and the driven system is demonstrated. The conditions under which complete synchronization is ensured are derived by applying a strategy based on the Master Stability Function and Lyapunov function. We show that transmitter and receiver systems consisting of cascaded SC-CNN-based canonical Chua’s oscillator can synchronize when they are coupled using direct information from the transmitter into the receiver. The communication performances of different information signals such as sinusoidal, square, and speech signals are demonstrated by real-time hardware experiments. The experimentally observed results are in agreement with the numerically obtained results, and they closely match with each other.