Phase-shifts in stochastic resonance in a Chua circuit

Details Phase-shifts in stochastic resonance in a Chua circuit Phase-shifts in stochastic resonance in a Chua circuit

2007-10-29

arxiv.org/abs/0710.5353v1

Nonlinear Sciences

Chaotic Dynamics

5 pages, 9 figures

Scientific paper

We present an experimental study of stochastic resonance in an electronic Chua circuit operating in the chaotic regime. We study in detail the switch-phase distribution and the phase-shift between sinusoidal forcing for two responses of the circuit: one depending on both inter-well and intra-well dynamics and the other depending only on inter-well dynamics. We describe the two relevant de-synchronizatrion mechanisms for high and low frequencies of the forcing and present a method to detect the optimal noise intensity from switch phases which coincides with the one derived from the observation of the signal-to-noise ratio or residence times.

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