Power spectrum research of twice sampling stochastic resonance response in a bistable system

被引：43
作者：
Leng, YG [1 ]
Wang, TY
Qin, XD
Li, RX
Guo, Y
机构：
[1] Tianjin Univ, Sch Mech Engn, Tianjin 300072, Peoples R China
[2] China Coal Econ Coll, Dept Computat, Yantai 264005, Peoples R China
来源：
ACTA PHYSICA SINICA | 2004年 / 53卷 / 03期
关键词：
stochastic resonance; twice sampling stochastic resonance; bistable system; frequency spectrum;
D O I：
10.7498/aps.53.717
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The characteristics of Lorentzian distribution in the power spectrum of a stochastic resonance(SR) from a bistable system have been investigated, and then the viewpoint of producing an identifiable SR peak only at the lower frequency area where the power energy being concentrated has been proposed. With big values of parameters, the spectral properties of a twice sampling stochastic resonance(TSSR) from a bistable system is probed in detail. Take the detection of a weak signal overwhelmed in heavy noise as an example, the application of the TSSR technique is shown finally.
引用
收藏
页码：717 / 723
页数：7
相关论文
共 13 条
[1]   Tuning in to noise [J].
Bulsara, AR ;
Gammaitoni, L .
PHYSICS TODAY, 1996, 49 (03) :39-45
[2]   Stochastic resonance at phase noise in signal transmission [J].
Chapeau-Blondeau, F .
PHYSICAL REVIEW E, 2000, 61 (01) :940-943
[3]   Stochastic resonance [J].
Gammaitoni, L ;
Hanggi, P ;
Jung, P ;
Marchesoni, F .
REVIEWS OF MODERN PHYSICS, 1998, 70 (01) :223-287
[4]   Signal-to-noise ratio gain by stochastic resonance in a bistable system [J].
Gingl, Z ;
Vajtai, R ;
Kiss, LB .
CHAOS SOLITONS & FRACTALS, 2000, 11 (12) :1929-1932
[5]   Noise-assisted signal transmission in a nonlinear electronic comparator: Experiment and theory [J].
Godivier, X ;
ChapeauBlondeau, F .
SIGNAL PROCESSING, 1997, 56 (03) :293-303
[6]  
Hu G., 1994, Stochastic Forces and Nonlinear Systems
[7]   Numerical research of twice sampling stochastic resonance for the detection of a weak signal submerged in a heavy noise [J].
Leng, YG ;
Wang, TY .
ACTA PHYSICA SINICA, 2003, 52 (10) :2432-2437
[8]  
LU ZH, 1993, ACTA PHYS SINICA, V42, P1556
[9]  
Nicolis G., 1997, SELF ORG NONEQUILIBR
[10]  
Qin Guang-rong, 1992, Acta Physica Sinica, V41, P360
12