摘要
研究了具有高斯白噪声的过阻尼二阶线性系统的随机共振现象,基于线性系统理论,得到了系统输出幅度增益的精确表达式。研究发现,输出幅度的增益是激励信号频率的非单调函数,系统固有频率与噪声强度对输出幅度增益的幅度影响是相反的。
The phenomenon of stochastic resonance in an overdamped second-order linear system subject to multiplicative Gaussian white noise is investigated. The explicit expression of the output amplitude gain （OAG） of the system is obtained based on linear system theory. It is shown that the OAG is a non-monotonic function of the external field frequency. Meanwhile, the effects of the instinct frequency of the system and the noise strength on the OAG are opposite.
出处
《电路与系统学报》
CSCD
北大核心
2008年第2期6-8,共3页
Journal of Circuits and Systems
关键词
随机共振
输出幅度增益
高斯白噪声
线性系统
stochastic resonance
output amplitude gain
Gaussian white noise
linear system
