Measurement of weak transmittances by stochastic resonance

被引：12
|
作者：
Palonpon, A [1 ]
Amistoso, J
Holdsworth, J
Garcia, W
Saloma, C
机构：
[1] Univ Philippines, Natl Inst Phys, Quezon 1101, Philippines
[2] Ateneo Manila Univ, Dept Phys, Quezon, Philippines
来源：
OPTICS LETTERS | 1998年 / 23卷 / 18期
关键词：
D O I：
10.1364/OL.23.001480
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We use stochastic resonance to measure weak transmittance amplitudes that are below the instrumental detection limit. Gaussian noise is added to the subthreshold (chopped) transmittance signal T(t) before detection by a crossing detector that uses a dc reference signal B > 0. Without noise, no measurement is possible because T(t) < B. A fourfold improvement has been obtained in the detection limit, permitting the measurement of amplitudes that are as small as 0.25 B. (C) 1998 Optical Society of America.
引用
收藏
页码：1480 / 1482
页数：3
相关论文
共 50 条
  • [41] Application of optimal matching stochastic resonance to weak signal detection
    College of Mechatronics Engineering and Automation, National University of Defense Technology, Changsha 410073, China
    Zhendong Ceshi Yu Zhenduan, 2007, 4 (270-272):
  • [42] A Method of Weak Signal Detection Based on Large Parameter Stochastic Resonance
    Wang, Zhixia
    Guo, Li
    Li, Ke
    COMMUNICATIONS, SIGNAL PROCESSING, AND SYSTEMS, 2018, 423 : 635 - 642
  • [43] NovelWoods-Saxon stochastic resonance system for weak signal detection*
    Zhou, Yong-Hui
    Xu, Xue-Mei
    Yin, Lin-Zi
    Ding, Yi-Peng
    Ding, Jia-Feng
    Sun, Ke-Hui
    CHINESE PHYSICS B, 2020, 29 (04)
  • [44] Weak Fault Feature Extraction Method Based on Improved Stochastic Resonance
    Yang, Zhen
    Li, Zhiqian
    Zhou, Fengxing
    Ma, Yajie
    Yan, Baokang
    SENSORS, 2022, 22 (17)
  • [45] Effect of sample frequency on the weak signal detection performance of stochastic resonance
    Dai Xiaoming
    Han Qiushi
    Wang Hongjun
    Zhang Huaicun
    PROCEEDINGS OF THE FIFTH INTERNATIONAL SYMPOSIUM ON TEST AUTOMATION & INSTRUMENTATION, VOLS 1 AND 2, 2014, : 570 - 574
  • [46] Rigorous theory of stochastic resonance in overdamped bistable oscillators for weak signals
    Landa, P.
    Ushakov, V.
    Kurths, Juergen
    CHAOS SOLITONS & FRACTALS, 2006, 30 (03) : 574 - 578
  • [47] Detection of weak signal from strong noise by adaptive stochastic resonance
    Wu, LL
    Hui, GH
    Chen, YQ
    Liu, JG
    ICEMI 2005: CONFERENCE PROCEEDINGS OF THE SEVENTH INTERNATIONAL CONFERENCE ON ELECTRONIC MEASUREMENT & INSTRUMENTS, VOL 1, 2005, : 286 - 290
  • [48] Scale transformation for detecting transient electromagnetic weak signal of stochastic resonance
    Wang Guo-Fu
    Zhang Hai-Ru
    Zhang Fa-Quan
    Ye Jin-Cai
    CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION, 2011, 54 (07): : 1928 - 1934
  • [49] Research on the method of weak signal detection based on bistable stochastic resonance
    Li Zhonghu
    Cai Zhiquan
    Wang Jinming
    Zheng Xinxin
    Zhang Lin
    PROCEEDINGS OF 2015 IEEE 12TH INTERNATIONAL CONFERENCE ON ELECTRONIC MEASUREMENT & INSTRUMENTS (ICEMI), VOL. 1, 2015, : 309 - 312
  • [50] Effects of multiscale noise tuning on stochastic resonance for weak signal detection
    He, Qingbo
    Wang, Jun
    DIGITAL SIGNAL PROCESSING, 2012, 22 (04) : 614 - 621
12345