• Comparison of backstepping and modified active control in projective synchronization of chaos in an extended Bonhöffer–van der Pol oscillator

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      https://www.ias.ac.in/article/fulltext/pram/080/05/0825-0835

    • Keywords

       

      Modified active control; backstepping control; projective synchronization of chaos in an extended Bonöffer–van der Pol oscillator.

    • Abstract

       

      In this article, projective synchronization of double–scroll attractor of an extended Bonöffer–van der Pol oscillator (BVPO) is considered via the backstepping and active control techniques. In each synchronization scheme, a single control function is designed to achieve projective synchronization between two Bonhöffer–van der Pol oscillator evolving from different initial conditions. To obtain a single control function via the active control, the coefficient of the error dynamics is chosen such that the number of control functions is reduced from three to one, thereby, reducing control function complexity in design. The results show that the transient error dynamics convergence and synchronization time are achieved faster via the backstepping than that of the active control technique. However, the control function obtained via the active control is simpler with a more stable synchronization time and hence, it is more suitable for practical implementation. Numerical simulations are presented to confirm the effectiveness of the analytical results.

    • Author Affiliations

       

      K S Ojo1 2 A N Njah1 S T Ogunjo2

      1. Department of Physics, University of Agriculture, P.M.B. 2240, Abeokuta, Nigeria
      2. Department of Physics, Federal University of Technology, P.M.B. 704, Akure, Nigeria
    • Dates

       
  • Pramana – Journal of Physics | News

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