Semenov Vladimir, Feoktistov Alexey, Vadivasova Tatyana, Schöll Eckehard, Zakharova Anna
Department of Physics, Saratov State University, Astrakhanskaya str. 83, 410012 Saratov, Russia.
Institut für Theoretische Physik, Technische Universität Berlin, Hardenbergstr. 36, 10623 Berlin, Germany.
Chaos. 2015 Mar;25(3):033111. doi: 10.1063/1.4915066.
Using the model of a generalized Van der Pol oscillator in the regime of subcritical Hopf bifurcation, we investigate the influence of time delay on noise-induced oscillations. It is shown that for appropriate choices of time delay, either suppression or enhancement of coherence resonance can be achieved. Analytical calculations are combined with numerical simulations and experiments on an electronic circuit.
利用亚临界霍普夫分岔状态下的广义范德波尔振荡器模型,我们研究了时间延迟对噪声诱导振荡的影响。结果表明,对于适当的时间延迟选择,可以实现相干共振的抑制或增强。分析计算与数值模拟以及电子电路实验相结合。