Nonlinear Theory and Its Applications, IEICE
Online ISSN : 2185-4106
ISSN-L : 2185-4106
Special section on Communication Sciences and Engineering
Enhancement of noise correlation for noise-induced synchronization of limit-cycle oscillators by threshold filtering
Masahiro KazamaWataru KurebayashiTakahiro TsuchidaYuta MinoshimaMikio HasegawaKoji KimuraHiroya Nakao
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2014 Volume 5 Issue 2 Pages 157-171


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.

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© 2014 The Institute of Electronics, Information and Communication Engineers
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