Stochastic resonance in an optical bistable system subjected to cross-correlated additive white noise and multiplicative colored noise  

作　　者：王兵 吴秀清 钱建发 

机构地区：[1]Department of Physics and Mathematics,Anhui University of Science and Technology [2]State Key Laboratory of ISN,Xidian University

出　　处：《Chinese Optics Letters》2010年第12期1160-1162,共3页中国光学快报（英文版）

基　　金：supported by the Open Foundation of ISN

摘　　要：The stochastic resonance （SR） of an optical bistable system with cross-correlated additive white and multiplicative colored noises and periodic signal is studied using the unified colored noise approximation and the theory of signal-to-noise ratio （SNR）. Results show that cross-correlation intensity λ enforces the SR of the system. The position of the peak on the SNR-τ curves moves to the right direction along with the increase of λ （τ is the self-correlation time of the multiplicative colored noise）. We find the SR phenomenon in the SNR-D and SNR-Q curves （D and Q are the intensities of the additive and multiplicative noises, respectively）, but not in the SNR-λ curves.The stochastic resonance （SR） of an optical bistable system with cross-correlated additive white and multiplicative colored noises and periodic signal is studied using the unified colored noise approximation and the theory of signal-to-noise ratio （SNR）. Results show that cross-correlation intensity λ enforces the SR of the system. The position of the peak on the SNR-τ curves moves to the right direction along with the increase of λ （τ is the self-correlation time of the multiplicative colored noise）. We find the SR phenomenon in the SNR-D and SNR-Q curves （D and Q are the intensities of the additive and multiplicative noises, respectively）, but not in the SNR-λ curves.

关 键 词：Circuit resonance Magnetic resonance Multiuser detection Signal to noise ratio Stochastic systems 

分 类 号：O437[机械工程—光学工程]