The Control of Stochastic Resonance by Harmonic Signal
The symmetry in a double-well potential of bistable systems subject to the action of a harmonic signal is broken. By variation of the amplitude of a harmonic signal, the asymmetry of bistable systems can be effectively controlled, the transitions probability between the two potential wells is increased and has influence on the effect of stochastic resonance in bistable systems. Numerical simulations show that adjusting the amplitude of a harmonic signal can produce stochastic resonance or make stochastic resonance more intense in bistable systems. It is a new method for stochastic resonance control.
Shaobo Zhong, Yimin Cheng and Xilong Qu
M. L. Zhang and M. Lin, "The Control of Stochastic Resonance by Harmonic Signal", Applied Mechanics and Materials, Vols. 50-51, pp. 559-563, 2011