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

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Author(s)

    • Kazama Masahiro
    • Graduate School of Interdisciplinary Information Studies, The University of Tokyo
    • Kurebayashi Wataru
    • Graduate School of Information Science and Engineering, Tokyo Institute of Technology
    • Tsuchida Takahiro
    • Graduate School of Information Science and Engineering, Tokyo Institute of Technology
    • Minoshima Yuta
    • Graduate School of Information Science and Engineering, Tokyo Institute of Technology
    • Hasegawa Mikio
    • Department of Electrical Engineering, Tokyo University of Science
    • Kimura Koji
    • Graduate School of Information Science and Engineering, Tokyo Institute of Technology
    • Nakao Hiroya
    • Graduate School of Information Science and Engineering, Tokyo Institute of Technology

Abstract

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.

Journal

  • Nonlinear Theory and Its Applications, IEICE

    Nonlinear Theory and Its Applications, IEICE 5(2), 157-171, 2014

    The Institute of Electronics, Information and Communication Engineers

Codes

  • NII Article ID (NAID)
    130003395999
  • Text Lang
    ENG
  • Article Type
    journal article
  • ISSN
    2185-4106
  • Data Source
    IR  J-STAGE 
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