Oscillation suppression and synchronization: Frequencies determine the role of control with time delays

Oscillation suppression and synchronization: Frequencies determine the role of control with time delays
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振荡抑制和同步:频率决定时滞控制的作用

DOI:
10.1209/0295-5075/102/20003
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发表时间:
2013-04
期刊:
Epl
影响因子:
1.8
通讯作者:
Kurths, Juergen
Kurths, Juergen
中科院分区:
物理与天体物理4区
文献类型:
--
作者:
Lin, Wei;Pu, Yang;Guo, Yao;Kurths, Juergen

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在这封信中,我们发现如何振荡的频率决定的控制,通过反馈控制抑制振荡的时间延迟的确切形式。这些结果的基础上,我们分析建立的反馈控制和时滞动力系统的稳定性的充分必要条件。我们还解释了这些条件是如何变化的时间延迟要么等于零或适当地变得更大。所有的分析和数值结果都说明了抑制的FitzHugh-Nagumo模型的振荡和振荡死亡和同步现象中观察到的一个复杂的动力学网络的时间延迟耦合。我们的研究结果可能是有用的调制振荡通过适当的控制设备在各个领域。
In this letter, we find how the frequency of an oscillation determines the exact form of the control for suppressing the oscillation through feedback controls with time delays. These results are based on necessary and sufficient conditions we analytically established for the stability of a dynamical system with feedback control and time delays. We also interpret how these conditions change as the time delay either is equal to zero or becomes larger appropriately. All the analytical and numerical results are illustrated by suppressing the oscillations of the FitzHugh-Nagumo model and by the oscillation death and synchronization phenomena observed in a complex dynamical network with time-delayed couplings. Our findings could be potentially useful for modulating oscillations through proper control devices in various fields.
DOI: --
发表时间: 2010-12
期刊: --
影响因子: --
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发表时间: 2005-11
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影响因子: 2.9
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期刊: PHYSICAL REVIEW E
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