物理学报2012，Vol.61Issue(3)：47-51,5.
周期矩形信号作用下时滞非对称单稳系统的随机共振
Stochastic resonance in a time-delayed asymmetric mono-stable system modulated by periodic rectangular signal
摘要
Abstract
We investigate the stochastic resonance of the time-delayed mono-stable system modulated by periodic rectangular signal and Gaussian white noises.The expression of signal-to-noise ratio（SNR） is obtained,and the stochastic resonance phenomenon is found in this system.The study shows that the effects of multiplicative intensily and white noise intensity on S N R are different.In the S N R-D plot,the phenomena of resonance and suppression coexist.When the value of the bias of system ｜r｜ is bigger or the ratio of multiplicative intensily to white noise intensity D/αis less than 1,the stochastic resonance phenomenon in the SNR-τplots disappears.关键词
时滞非对称单稳系统/随机共振/周期矩形信号Key words
the time-delayed asymmetric mono-stable system/stochastic resonance/periodic rectangular signal分类
数理科学引用本文复制引用
张晓燕,徐伟,周丙常..周期矩形信号作用下时滞非对称单稳系统的随机共振[J].物理学报,2012,61(3):47-51,5.基金项目
国家自然科学基金（批准号：10872165 11102155）资助的课题 （）
