Stochastic resonance in the FitzHugh-Nagumo system driven by bounded noise

Kai Leung Yung, You Ming Lei, Yan Xu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

24 Citations (Scopus)


We investigate stochastic resonance (SR) in the FitzHugh-Nagumo system under combined bounded noise and weak harmonic excitation. Taking a spectral amplification factor as a signal-to-noise ratio, we show numerically that bounded noise can induce SR by adjusting either the intensity of bounded noise or its colour. Moreover, the increase of noise colour can enhance the SR and make the peak of the SR shift toward lower noise intensities, which is more feasible in practice. Since bounded noise is flexible to model random excitation, these findings may have some potential applications in engineering, neuroscience and biology.
Original languageEnglish
Article number010503
JournalChinese Physics B
Issue number1
Publication statusPublished - 9 Feb 2010


  • Bounded noise
  • FitzHugh-Nagumo system
  • Stochastic resonance

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this