Noise-Induced Phase Locking and Frequency Mixing in a Schmitt-Trigger Inverter with Delayed Feedback

被引：5

作者：

Misono, Masatoshi ^{[1
]}

Miyakawa, Kenji ^{[1
]}

机构：

[1] Fukuoka Univ, Dept Appl Phys, Fukuoka 8140180, Japan

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2010年 / 79卷 / 03期

关键词：

stochastic resonance; coherence resonance; Schmitt-trigger inverter; phase locking; frequency mixing; delayed feedback; STOCHASTIC RESONANCE; COHERENCE RESONANCE; SYSTEMS;

D O I：

10.1143/JPSJ.79.034801

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the synergetic effects in a Schmitt-trigger inverter with a delayed feedback loop subject to both a periodic signal and a white noise. When the frequency of oscillation induced by coherence resonance (CR) approaches that of the external signal enhanced by stochastic resonance (SR) with an increase in the noise intensity of the output, the phase of the former is locked to that of the latter, and the signal-to-noise ratio of the output is enhanced. We further observe the frequency mixing between the SR and CR modes. Such a frequency mixing is also enhanced by optimal noise.

引用

页数：6

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