Artigo
Finite-time synchronization of tunnel-diode-based chaotic oscillators
Registro en:
Physical Review E. College Pk: Amer Physical Soc, v. 89, n. 3, 11 p., 2014.
1539-3755
10.1103/PhysRevE.89.032921
WOS:000333699900011
WOS000333699900011.pdf
Autor
Louodop, Patrick
Fotsin, Hilaire
Kountchou, Michaux
Ngouonkadi, Elie B. Megam
Cerdeira, Hilda A. [UNESP]
Bowong, Samuel
Resumen
This paper addresses the problem of finite-time synchronization of tunnel diode based chaotic oscillators. After a brief investigation of its chaotic dynamics, we propose an active adaptive feedback coupling which accomplishes the synchronization of tunnel-diode-based chaotic systems with and without the presence of delay(s), basing ourselves on Lyapunov and on Krasovskii-Lyapunov stability theories. This feedback coupling could be applied to many other chaotic systems. A finite horizon can be arbitrarily established by ensuring that chaos synchronization is achieved at a pre-established time. An advantage of the proposed feedback coupling is that it is simple and easy to implement. Both mathematical investigations and numerical simulations followed by PSPICE experiment are presented to show the feasibility of the proposed method. Univ Dschang, Lab Elect & Signal Proc, Fac Sci, Dept Phys, Dschang, Cameroon Univ Estadual Paulista, Inst Fis Teor, UNESP, BR-01140070 Sao Paulo, Brazil Univ Douala, Lab Appl Math, Dept Math & Comp Sci, Fac Sci, Douala, Cameroon Univ Estadual Paulista, Inst Fis Teor, UNESP, BR-01140070 Sao Paulo, Brazil