摘要
研究了乘性色噪声和加性白噪声之间的耦合为色噪声时虫口模型的动力学行为.在噪声相关时间不同和噪声间耦合不同的情况下求出了系统的有效本征值λeff和强度相关时间Tc.结果表明,噪声的有色性和噪声之间的耦合对虫口模型的涨落有重要的影响.
The dynamical property of a logistic growth model is investigated when the colored coupling between multiplicative colored noise and additive white noise included. The effective eigenvalue Aeff and the intensity correlation time Tc of the system are derived for different correlation time τ1, τ2 and coupling strength λ. It is shown that noise color and noises coupling strength can effect the fluctuation in the system greatly
出处
《苏州大学学报（自然科学版）》
CAS
2005年第3期55-58,共4页
Journal of Soochow University(Natural Science Edition)
基金
江苏省自然科学基金资助项目(BK2001138)
关键词
耦合强度
噪声相关时间
有效本征值
强度相关时间
coupling strength
noise correlation time
effective eigenvalue
intensity correlation time
