Implication of two-coupled tri-stable stochastic resonance in weak signal detection

doi:10.1088/1674-1056/27/3/034203

中国物理B ›› 2018, Vol. 27 ›› Issue (3): 34203-034203.doi: 10.1088/1674-1056/27/3/034203

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇下一篇

Implication of two-coupled tri-stable stochastic resonance in weak signal detection

Quan-Quan Li(李泉泉), Xue-Mei Xu(许雪梅), Lin-Zi Yin(尹林子), Yi-Peng Ding(丁一鹏), Jia-Feng Ding(丁家峰), Ke-Hui Sun(孙克辉)

School of Physics and Electronics, Central South University, Changsha 410083, China

收稿日期:2017-07-07 修回日期:2017-11-03 出版日期:2018-03-05 发布日期:2018-03-05
通讯作者: Xue-Mei Xu E-mail:xuxuemei999@126.com
基金资助:
Project supported by the National Natural Science Foundation of China (Grant Nos. 61071025 and 61502538).

Implication of two-coupled tri-stable stochastic resonance in weak signal detection

Quan-Quan Li(李泉泉), Xue-Mei Xu(许雪梅), Lin-Zi Yin(尹林子), Yi-Peng Ding(丁一鹏), Jia-Feng Ding(丁家峰), Ke-Hui Sun(孙克辉)

School of Physics and Electronics, Central South University, Changsha 410083, China

Received:2017-07-07 Revised:2017-11-03 Online:2018-03-05 Published:2018-03-05
Contact: Xue-Mei Xu E-mail:xuxuemei999@126.com
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos. 61071025 and 61502538).

摘要/Abstract

摘要： Stochastic resonance (SR) has been proved to be an effective approach to extract weak signals overwhelmed in noise. However, the detection effect of current SR models is still unsatisfactory. Here, a coupled tri-stable stochastic resonance (CTSSR) model is proposed to further increase the output signal-to-noise ratio (SNR) and improve the detection effect of SR. The effects of parameters a, b, c, and r in the proposed resonance system on the SNR are studied, by which we determine a set of parameters that is relatively optimal to implement a comparison with other classical SR models. Numerical experiment results indicate that this proposed model performs better in weak signal detection applications than the classical ones with merits of higher output SNR and better anti-noise capability.

关键词: stochastic resonance, extracting weak signals, signal-to-noise ratio (SNR), detection effect

Abstract: Stochastic resonance (SR) has been proved to be an effective approach to extract weak signals overwhelmed in noise. However, the detection effect of current SR models is still unsatisfactory. Here, a coupled tri-stable stochastic resonance (CTSSR) model is proposed to further increase the output signal-to-noise ratio (SNR) and improve the detection effect of SR. The effects of parameters a, b, c, and r in the proposed resonance system on the SNR are studied, by which we determine a set of parameters that is relatively optimal to implement a comparison with other classical SR models. Numerical experiment results indicate that this proposed model performs better in weak signal detection applications than the classical ones with merits of higher output SNR and better anti-noise capability.

Key words: stochastic resonance, extracting weak signals, signal-to-noise ratio (SNR), detection effect

中图分类号: (Phase retrieval)

42.30.Rx

42.55.Px (Semiconductor lasers; laser diodes) 42.79.-e (Optical elements, devices, and systems) 42.87.-d (Optical testing techniques)

李泉泉, 许雪梅, 尹林子, 丁一鹏, 丁家峰, 孙克辉. Implication of two-coupled tri-stable stochastic resonance in weak signal detection[J]. 中国物理B, 2018, 27(3): 34203-034203.

Quan-Quan Li(李泉泉), Xue-Mei Xu(许雪梅), Lin-Zi Yin(尹林子), Yi-Peng Ding(丁一鹏), Jia-Feng Ding(丁家峰), Ke-Hui Sun(孙克辉). Implication of two-coupled tri-stable stochastic resonance in weak signal detection[J]. Chin. Phys. B, 2018, 27(3): 34203-034203.

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Implication of two-coupled tri-stable stochastic resonance in weak signal detection

Implication of two-coupled tri-stable stochastic resonance in weak signal detection

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