天津工业大学学报Issue(2)：76-80,5.
一类具有Beddington-DeAngelis功能性反应随机模型的数值模拟
Numerical simulation for a stochastic system with Beddington-DeAngelis functional response
摘要
Abstract
Considering Poisson white noise and Gauss white noise into the intrinsic grow rate of prey and the death rate of predators, a stochastic system of three population densities with Beddington-DeAngelis functional response is established. Then Milstein method is used to make stochastic system discrete and programs is compiled with computer algebra Matlab to finish the analysis. Numerical simulations of deterministic system and stochastic system certifiy the result obtained. The results demonstrate that a bounded chaotic attractor would occur in the stochastic system if the noises are sufficiently small.关键词
高斯白噪声/泊松白噪声/Beddington-DeAngelis(BDA)功能性反应/Milstein方法Key words
Gauss white noise/Poisson white noise/Beddington-DeAngelis(BDA) functional response/Milstein method分类
数理科学引用本文复制引用
李瑜,黄东卫,郭永峰..一类具有Beddington-DeAngelis功能性反应随机模型的数值模拟[J].天津工业大学学报,2014,(2):76-80,5.基金项目
国家自然科学基金项目 （）
