High signal-to-noise ratio gain by stochastic resonance in an unconventional bistable system

Author

Wan, Pin ; Zhan, Yiju ; Zheng, Hui

Author_Institution

Fac. of Autom., Guangdong Univ. of Technol., Guangzhou, China

Volume

4

fYear

2011

fDate

10-12 June 2011

Firstpage

652

Lastpage

655

Abstract

We report that the signal-to-noise ratio (SNR) can be improved by the stochastic resonance (SR) in an unconventional bistable system. The system is driven by Gaussian white noise and a sinusoidal signal, and studied by using the second-order Runge-Kutta method. We find that the SNR and the SNR gain exhibit the stochastic resonance behavior, and the SNR gain greatly exceeds unity on some occasions. This result is the latest development of the unconventional bistable stochastic resonance, and has potential applications in the signal detection, processing and communications.

Keywords

AWGN; Runge-Kutta methods; signal processing; stochastic processes; Gaussian white noise; bistable stochastic resonance; bistable system; second-order Runge-Kutta method; signal communications; signal detection; signal processing; signal-to-noise ratio; sinusoidal signal; Nonlinear optics; Optical bistability; Signal detection; Signal to noise ratio; Stochastic resonance; Strontium; SNR gain; nonlinearity; numerical simulation; unconventional bistable stochastic resonance;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer Science and Automation Engineering (CSAE), 2011 IEEE International Conference on

Conference_Location

Shanghai

Print_ISBN

978-1-4244-8727-1

Type

conf

DOI

10.1109/CSAE.2011.5952931

Filename

5952931