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Distributed acoustic sensor based on improved minimum control recursive average algorithm

机译:基于改进最小控制递归平均算法的分布式声传感器

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摘要

An optical fiber acoustic sensor based on the combination of generalized cross-correlation and improved minimum control recursive average algorithms is proposed. The sensing system consists of a double Sagnac interference structure that picks up acoustic signals along the sensing fiber. The improved minimum control recursive average algorithm is used to preprocess the acquired signal to improve the signal-to-noise ratio, then the time-delay information is obtained through the correlation operation on the processed signal, and the acoustic source is located through the time delay information. Experiments show that under the condition of high signal-to-noise ratio of the acquired signal, the accuracy of acoustic source localization can be improved.
机译:提出了一种基于广义互相关和改进的最小控制递归平均算法相结合的光纤传感器。传感系统由双重Sagnac干涉结构组成,该结构沿传感光纤拾取声信号。采用改进的最小控制递归平均算法对采集到的信号进行预处理,以提高信噪比,然后通过对处理后的信号进行相关运算得到时延信息,并通过时间定位声源。延迟信息。实验表明,在所获取信号的信噪比较高的条件下,可以提高声源定位的精度。

著录项

  • 来源
    《Optical fiber technology》 |2019年第7期|125-131|共7页
  • 作者单位

    Taiyuan Univ Technol, Coll Phys & Optoelect, Taiyuan 030024, Shanxi, Peoples R China|Taiyuan Univ Technol, Minist Educ & Shanxi Prov, Key Lab Adv Transducers & Intelligent Control Sys, Taiyuan 030024, Shanxi, Peoples R China;

    Taiyuan Univ Technol, Coll Phys & Optoelect, Taiyuan 030024, Shanxi, Peoples R China|Taiyuan Univ Technol, Minist Educ & Shanxi Prov, Key Lab Adv Transducers & Intelligent Control Sys, Taiyuan 030024, Shanxi, Peoples R China;

    Taiyuan Univ Technol, Coll Phys & Optoelect, Taiyuan 030024, Shanxi, Peoples R China|Taiyuan Univ Technol, Minist Educ & Shanxi Prov, Key Lab Adv Transducers & Intelligent Control Sys, Taiyuan 030024, Shanxi, Peoples R China;

    Taiyuan Univ Technol, Coll Phys & Optoelect, Taiyuan 030024, Shanxi, Peoples R China|Taiyuan Univ Technol, Minist Educ & Shanxi Prov, Key Lab Adv Transducers & Intelligent Control Sys, Taiyuan 030024, Shanxi, Peoples R China;

    Taiyuan Univ Technol, Coll Phys & Optoelect, Taiyuan 030024, Shanxi, Peoples R China|Taiyuan Univ Technol, Minist Educ & Shanxi Prov, Key Lab Adv Transducers & Intelligent Control Sys, Taiyuan 030024, Shanxi, Peoples R China;

    Taiyuan Univ Technol, Coll Phys & Optoelect, Taiyuan 030024, Shanxi, Peoples R China|Taiyuan Univ Technol, Minist Educ & Shanxi Prov, Key Lab Adv Transducers & Intelligent Control Sys, Taiyuan 030024, Shanxi, Peoples R China;

    Taiyuan Univ Technol, Coll Phys & Optoelect, Taiyuan 030024, Shanxi, Peoples R China|Taiyuan Univ Technol, Minist Educ & Shanxi Prov, Key Lab Adv Transducers & Intelligent Control Sys, Taiyuan 030024, Shanxi, Peoples R China|State Key Lab Coal & CBM Comin, Jincheng 048000, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Optical fiber acoustic sensor; IMCRA; Double Sagnac interferometer; Time delay estimation;

    机译:光纤声传感器;IMCRA;双Sagnac干涉仪;时延估计;

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