Effect of inertia mass on the stochastic resonance driven by a multiplicative dichotomous noise  

作　　者：李鹏 聂林如 黄奇瑞 孙兴修 

机构地区：[1]Faculty of Science,Kunming University of Science and Technology

出　　处：《Chinese Physics B》2012年第5期82-87,共6页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China (Grant No. 10847139);the Yunnan Provincial Foundation,China (Grant Nos. 2009CD036 and 08Z0015)

摘　　要：A stochastic system driven by dichotomous noise and periodic signal is investigated in the under-damped case.The exact expressions of output signal amplitude and signal-to-noise ratio（SNR） of the system are derived.Numerical results indicate that the inertial mass greatly affects the output signal amplitude and the SNR.Regardless of whether the noise is symmetric or asymmetric,the inertial mass can influence the phenomenon of stochastic resonance（SR） of the system,leading to two types of resonance phenomenon：one is coherence-resonance-like of the SNR with inertial mass,the other is the SR of the SNR with noise intensity.A stochastic system driven by dichotomous noise and periodic signal is investigated in the under-damped case.The exact expressions of output signal amplitude and signal-to-noise ratio（SNR） of the system are derived.Numerical results indicate that the inertial mass greatly affects the output signal amplitude and the SNR.Regardless of whether the noise is symmetric or asymmetric,the inertial mass can influence the phenomenon of stochastic resonance（SR） of the system,leading to two types of resonance phenomenon：one is coherence-resonance-like of the SNR with inertial mass,the other is the SR of the SNR with noise intensity.

关 键 词：dichotomous noise inertial mass output signal amplitude signal-to-noise ratio 

分 类 号：TN911.4[电子电信—通信与信息系统]