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arXiv 1703.09786nlin.CDphysics.gen-ph
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通过低频驱动控制振荡器频率同步

Controlling the oscillator frequency synchronization by a low-frequency drive

Anastasiia Y. Nimets, Klaus Schuenemann, Dmytro M. Vavriv

摘要:

研究了低频和高频外部信号共同驱动的振荡器的动力学特性.它示出,两个和三个频率的共振出现由于这些谐波力的非线性相互作用。以具有调制固有频率的Van der Pol振子为数学模型,解析地估计了在这些谐振下实现振子同步所必须满足的条件。它表明,由于低频调制,额外的同步区域中出现的控制参数空间。理论研究结果的可行性与Hartley型振荡器的实验证实。

英文摘要:

The dynamics of an oscillator driven by both low- and high- frequency external signals is studied. It is shown that both two- and three-frequency resonances arise due to a nonlinear interaction of these harmonic forces. Conditions which must be met for oscillator synchronization under these resonances are estimated analytically by considering the Van der Pol oscillator with modulated natural frequency as mathematical model. It is demonstrated that due to the low-frequency modulation, additional synchronization regions arise in the control parameter space. Feasibility of the theoretical findings is confirmed in experiments with a Hartley-type oscillator.

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