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Título : Experimental observation of coherence and stochastic resonances in an electronic chua circuit
Autor : Calvo, Óscar, Gomes, Iacyel, Mirasso, Claudio R., Toral, Raúl
Palabras clave : Condensed Matter (cond-mat)
Chaotic Dynamics (nlin.CD)
Fecha de publicación : 3-Jul-2002
Editor: American Institute of Physics
Citación : Aip Conference Proceedings 622(1): 427-432 (2001)
Resumen: Stochastic and coherence resonances appear in nonlinear systems subjected to an external source of noise and are characterized by a maximum response at the optimal value of the noise intensity. This paper shows experimentally that it is possible to observe them in a {sl chaotic} system. To this end we have analysed an electronic Chua circuit running in the chaotic regime and added noise to its dynamics. In the case of coherence resonance, we observe an optimal periodicity for the jumps between chaotic attractors, whereas in the case of stochastic resonance we observe a maximum in the signal--to--noise ratio at the frequency of an external sinusoidal perturbation.
Descripción : 6 pages.-- ArXiv pre-print: http://arxiv.org/abs/cond-mat/0107468
Experimental Chaos: 6th Experimental Chaos Conference.
Versión del editor: http://dx.doi.org/10.1063/1.1487561
URI : http://hdl.handle.net/10261/18008
ISSN: 0094-243X
DOI: 10.1063/1.1487561
Citación : Aip Conference Proceedings 622(1): 427-432 (2001)
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