中国物理B ›› 2006, Vol. 15 ›› Issue (12): 2867-2871.doi: 10.1088/1009-1963/15/12/017
徐博侯1, 李建龙2
Li Jian-Long(李建龙)a)† and Xu Bo-Hou(徐博侯)b)
摘要: In this paper conventional stochastic resonance (CSR) is realized by adding the noise intensity. This demonstrates that tuning the system parameters with fixed noise can make the noise play a constructive role and realize parameter-induced stochastic resonance (PSR). PSR can be interpreted as changing the intrinsic characteristic of the dynamical system to yield the cooperative effect between the stochastic-subjected nonlinear system and the external periodic force. This can be realized at any noise intensity, which greatly differs from CSR that is realized under the condition of the initial noise intensity not greater than the resonance level. Moreover, it is proved that PSR is different from the optimization of system parameters.
中图分类号: (Nonlinear dynamics and chaos)