Synchronization of stochastic bistable systems by biperiodic signals.
Synchronization of stochastic bistable systems by biperiodic signals.
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DOI：
10.1103/physreve.76.031122
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发表时间：
2007-09
期刊：
影响因子：
--
通讯作者：
I. Khovanov;P. McClintock
中科院分区：
文献类型：
--
作者：
I. Khovanov;P. McClintock
本文通过电子电路（施密特触发器）实验，研究了噪声双稳态系统对双周期信号的非线性响应。我们使用的信号是双谐波信号，即低频和高频谐波分量的叠加。结果表明，系统的平均开关频率（MSF）在低频和高频下均可锁定。此外，高频激励可以诱导和增强低频的MSF锁定现象。因此，高频偏置可以控制低频同步。
We study the nonlinear response of a noisy bistable system to a biperiodic signal through experiments with an electronic circuit (Schmitt trigger). The signal we use is a biharmonic one, i.e., a superposition of low and high frequency harmonic components. It is shown that the mean switching frequency (MSF) of the system can be locked at both low and high frequencies. Moreover, the phenomenon of MSF locking at the lower frequency can be induced and enhanced by the higher frequency excitation. Thus high frequency bias can control synchronization at the low frequency.