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FPGA implementation of novel fractional-order chaotic systems with two equilibriums and no equilibrium and its adaptive sliding mode synchronization

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Abstract

This paper introduces two novel fractional-order chaotic systems with cubic nonlinear resistor and investigates its adaptive sliding mode synchronization. Firstly the novel two equilibrium chaotic system with cubic nonlinear resistor (NCCNR) is derived and its dynamic properties are investigated. The fractional-order cubic nonlinear resistor system (FONCCNR) is then derived from the integer-order model and its stability and fractional-order bifurcation are discussed. Next a novel no-equilibrium chaotic cubic nonlinear resistor system (NECNR) is derived from NCCNR system. Dynamic properties of NECNR system are investigated. The fractional-order no equilibrium cubic nonlinear resistor system (FONECNR) is derived from NECNR. Stability and fractional-order bifurcation are investigated for the FONECNR system. The non-identical adaptive sliding mode synchronization of FONCCNR and FONECNR systems are achieved. Finally the proposed systems, adaptive control laws, sliding surfaces and adaptive controllers are implemented in FPGA.

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Authors and Affiliations

  1. Centre for Non-Linear Dynamics, Defense University, Bishoftu, Ethiopia

    Karthikeyan Rajagopal & Ashok Kumar Srinivasan

  2. Department of Electronics Engineering, Chennai Institute of Technology, Chennai, India

    Anitha Karthikeyan

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  1. Karthikeyan Rajagopal
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  2. Anitha Karthikeyan
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Rajagopal, K., Karthikeyan, A. & Srinivasan, A.K. FPGA implementation of novel fractional-order chaotic systems with two equilibriums and no equilibrium and its adaptive sliding mode synchronization. Nonlinear Dyn 87, 2281–2304 (2017). https://doi.org/10.1007/s11071-016-3189-z

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