Noise induced resonance phenomena in coupled map lattices

G. Ambika, K. Menon and K. P. Harikrishnan ()

The European Physical Journal B: Condensed Matter and Complex Systems, 2006, vol. 49, issue 2, 225-230

Abstract: We analyse different types of resonance phenomena that can occur in a coupled map lattice in the presence of noise with a subthreshold signal. The onsite dynamics considered here is different from previous such studies, namely, a bimodal cubic map capable of bistability in its dynamics. In addition to the resonance observed in the temporal iterates (the conventional stochastic resonance), we establish the possibility of resonance patterns in spatial sequences along the lattice, which we refer to as “Lattice Stochastic Resonance”. The characterising features of both are investigated in detail, under different types of signals with nearest neighbour coupling between lattice points. Possible practical applications are in signal detection, image processing and in communication networks. Copyright EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2006

Date: 2006
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DOI: 10.1140/epjb/e2006-00042-0

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