Enhancement of noise correlation for noise-induced synchronization of limit-cycle oscillators by threshold filtering

被引：0

作者：

Kazama, Masahiro ^{[1
]}

Kurebayashi, Wataru ^{[2
]}

Tsuchida, Takahiro ^{[2
]}

Minoshima, Yuta ^{[2
]}

Hasegawa, Mikio ^{[3
]}

Kimura, Koji ^{[2
]}

Nakao, Hiroya ^{[2
]}

机构：

[1] Univ Tokyo, Grad Sch Interdisciplinary Informat Studies, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1130033, Japan

[2] Tokyo Inst Technol, Grad Sch Informat Sci & Engn, Meguro Ku, Tokyo 1528552, Japan

[3] Tokyo Univ Sci, Dept Elect Engn, Katsushika ku, Tokyo 1258585, Japan

来源：

IEICE NONLINEAR THEORY AND ITS APPLICATIONS | 2014年 / 5卷 / 02期

关键词：

nonlinear oscillators; noise-induced synchronization; threshold filtering; signal processing; noise correlation;

D O I：

10.1587/nolta.5.157

中图分类号：

O1 [数学];

学科分类号：

0701 ; 070101 ;

摘要：

Nonlinear oscillators driven by correlated noisy signals can synchronize without direct mutual interactions. Here we show that correlation between noisy signals can be enhanced by applying a threshold filter, and the filtered signals can be used to improve noise-induced synchronization. We derive analytical expressions for the correlation coefficient between the filtered signals, and, using simple examples, we demonstrate that the correlation can actually be enhanced and the synchronization can be improved by the threshold filtering in some cases.

引用

页码：157 / 171

页数：15

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