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Mechanism of parameter-adjusted stochastic resonance based on Kramers rate

Leng Yong-Gang

Mechanism of parameter-adjusted stochastic resonance based on Kramers rate

Leng Yong-Gang
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  • Abstract views:  2086
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  • Cited By: 0
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  • Received Date:  03 November 2008
  • Accepted Date:  03 March 2009
  • Published Online:  20 August 2009

Mechanism of parameter-adjusted stochastic resonance based on Kramers rate

  • 1. 天津大学机械工程学院,天津 300072

Abstract: Kramers rate restricts the stochastic resonance (SR) frequency within the scope of half of its limit value. This restriction is the cause of SR failure of high frequency signal. By revealing the mechanism of frequency transformation of the twice sampling SR, we prove that the frequency scale ratio of the twice sampling SR can map or transform any signal frequency to the SR frequency scale. Compared with the method of twice sampling SR, the approach of adjusting system parameters to realize SR can only be used within the small SR frequency range, since in tuning bistable system parameters it is hard to make half the Kramers rate equal to the high frequency of the real signal.

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