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arXiv 1107.4197nlin.AOcond-mat.dis-nnnlin.CD
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时滞耦合Stuart-Landau振子网络的自适应同步

Adaptive synchronization in delay-coupled networks of Stuart-Landau oscillators

Anton Selivanov, Judith Lehnert, Thomas Dahms, Philipp Hövel, Alexander L. Fradkov, Eckehard Schöll

摘要:

我们考虑网络的延迟耦合斯图尔特-朗道振荡器。在这些系统中,耦合相位已被发现是一个关键的控制参数。通过适当地选择该参数,可以在网络的不同同步振荡状态之间切换。应用速度梯度法,我们推导出一个自适应算法的耦合相位的自动调整,使所需的状态可以选择从一个多稳态制度。我们提出的目标函数的基础上的差异的振荡器和一个广义的序参量,并表明,速度梯度方法可以找到适当的耦合相位与不同的同步状态,例如,可以选择同相振荡、张开或各种簇状态。

英文摘要:

We consider networks of delay-coupled Stuart-Landau oscillators. In these systems, the coupling phase has been found to be a crucial control parameter. By proper choice of this parameter one can switch between different synchronous oscillatory states of the network. Applying the speed-gradient method, we derive an adaptive algorithm for an automatic adjustment of the coupling phase such that a desired state can be selected from an otherwise multistable regime. We propose goal functions based on both the difference of the oscillators and a generalized order parameter and demonstrate that the speed-gradient method allows one to find appropriate coupling phases with which different states of synchronization, e.g., in-phase oscillation, splay or various cluster states, can be selected.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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