Weak Signal Frequency Detection Based on a Fractional-Order Bistable System
HE Gui-Tian, LUO Mao-Kang**
Department of Mathematics, Sichuan University, Chengdu 610064
Weak Signal Frequency Detection Based on a Fractional-Order Bistable System
HE Gui-Tian, LUO Mao-Kang**
Department of Mathematics, Sichuan University, Chengdu 610064
Abstract ：We apply spectral power amplification to quantifying and investigating the phenomenon of stochastic resonance in fractional-order systems. Moreover, the frequency of the weak mixed signal is detected by a stochastic resonance mechanism together with a power spectrum. The corresponding numerical results demonstrate the effectiveness of the proposed methods.
Key words ：
02.50.Ey
05.40.Jc
05.45.Xt
收稿日期: 2011-12-01
出版日期: 2012-05-31
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2012, Vol. 29 
