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arXiv 2104.09944nlin.AO
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强周期输入对极限环振子的快速最优卷吸

Fast optimal entrainment of limit-cycle oscillators by strong periodic inputs via phase-amplitude reduction and Floquet theory

Shohei Takata, Yuzuru Kato, Hiroya Nakao

摘要:

基于相位振幅约化和Floquet理论,研究了强周期输入对极限环振子的最优卷吸。提出了两种方法来获得输入波形,保持系统状态接近原始极限环,这使得使用强输入夹带。第一幅值反馈方法使用反馈控制来抑制系统状态与极限环的偏差,而第二幅值惩罚方法寻求不激励与前馈框架中的极限环的大偏差的输入波形。作为例子,分析了具有实Floquet指数或复Floquet指数的van der Pol和Willamowski-Rössler振子的最优夹带。结果表明,所提出的方法可以实现相当快的夹带,并提供更广泛的夹带范围比传统的方法,只依赖于相位减少。

英文摘要:

Optimal entrainment of limit-cycle oscillators by strong periodic inputs is studied on the basis of the phase-amplitude reduction and Floquet theory. Two methods for deriving the input waveforms that keep the system state close to the original limit cycle are proposed, which enable the use of strong inputs for entrainment. The first amplitude-feedback method uses feedback control to suppress deviations of the system state from the limit cycle, while the second amplitude-penalty method seeks an input waveform that does not excite large deviations from the limit cycle in the feedforward framework. Optimal entrainment of the van der Pol and Willamowski-Rössler oscillators with real or complex Floquet exponents are analyzed as examples. It is demonstrated that the proposed methods can achieve considerably faster entrainment and provide wider entrainment ranges than the conventional method that relies only on phase reduction.

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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