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在Poisson白噪激发下通过路径集成方法对双节律振荡器进行随机响应分析
Wenting Zhang1, Wei Xu2, Yuanyuan Bai2
1School of Mathematics and Statistics, <a href="https://ror.org/01y0j0j86">Northwestern Polytechnical University</a>, Xi'an 710072, Shaanxi, People's Republic of China and Research Department Complexity Science, <a href="https://ror.org/03e8s1d88">Potsdam Institute for Climate Impact Research</a>, Potsdam 14473, Germany.
这项研究分析了波桑白噪声下的双节奏范德波尔振荡器. 非线性参数极大地影响噪声对系统的影响.
科学领域:
- 非线性动力学是一种非线性动力学.
- 随机过程 随机过程
- 振荡器系统 振荡器系统
背景情况:
- 范德波尔振荡器是一种具有复杂动态的经典模型.
- 在各种科学领域,了解振荡器对随机干扰的反应至关重要.
- 双节律系统显示多个稳定状态,增加了它们的随机分析的复杂性.
研究的目的:
- 为了研究一个双节奏的范德波尔振荡器对波桑白噪声刺激的随机反应.
- 开发和验证一种改进的路径集成 (PI) 方法来计算系统的概率密度.
- 分析非线性参数和波桑白噪声特征对静态和瞬态响应的影响.
主要方法:
- 导出和应用一个改进的路径集成 (PI) 方法.
- 使用PI方法计算系统的概率密度.
- 通过蒙特卡洛模拟验证PI方法.
主要成果:
- 非线性系统参数显著决定了波桑白噪声对双节律振荡器的影响.
- 在同等强度下比较波桑和高斯白噪声效应,可以发现不同的机制.
- 对波桑噪声的关键参数进行了分析,以了解它们对静态和瞬态动态的影响.
结论:
- 改进的PI方法准确地捕捉了双节奏范德波尔振荡器的随机行为.
- 非线性参数对于控制系统对随机扰动的响应至关重要,包括双节律的时间.
- 这项研究提供了关于在不连续的随机干扰下振荡器动态的见解.
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