GHOST STOCHASTIC RESONANCE IN AN ELECTRONIC CIRCUIT

Abstract

We demonstrate experimentally the regime of ghost stochastic resonance in the response of a Monostable Schmit Trigger electronic circuit driven by noise and signals with N frequency components: kf0+Δf, (k+1)f0+Δf,…, k+nf0+Δf where k is an integer greater than one. It is verified that stochastic resonance occurs at the frequency fr = f0 + (Δf/(k+(N-1)/2)), as predicted in the theory. At the frequency for which the resonance is maximum there is no input energy, and thus this form is called "ghost" stochastic resonance.