Stochastic resonance enhanced by dichotomic noise in a bistable system
We study linear responses of a stochastic bistable system driven by dichotomic noise to a weak periodic signal. We show that the effect of stochastic resonance can be greatly enhanced in comparison with the conventional case when dichotomic forcing is absent, that is, both the signal-to-noise ratio and the spectral power amplification reach much greater values than in the standard stochastic resonance setup.
Rozenfeld
R
Institute for Physics, Humboldt University at Berlin, D-10115, Berlin, Germany.
Neiman
A
Schimansky-Geier
L