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Photonic Sensors

, Volume 8, Issue 2, pp 103–113 | Cite as

Performance Improvement of Raman Distributed Temperature System by Using Noise Suppression

  • Jian Li
  • Yunting Li
  • Mingjiang Zhang
  • Yi Liu
  • Jianzhong Zhang
  • Baoqiang Yan
  • Dong Wang
  • Baoquan Jin
Open Access
Regular

Abstract

In Raman distributed temperature system, the key factor for performance improvement is noise suppression, which seriously affects the sensing distance and temperature accuracy. Therefore, we propose and experimentally demonstrate dynamic noise difference algorithm and wavelet transform modulus maximum (WTMM) to de-noising Raman anti-Stokes signal. Experimental results show that the sensing distance can increase from 3 km to 11.5 km and the temperature accuracy increases to 1.58 °C at the sensing distance of 10.4 km.

Keywords

Optical fiber sensors Raman scattering noise suppression wavelet transform modulus maximum 

Notes

Acknowledgment

This work is supported by the National Natural Science Foundation of China (NSFC) under Grant Nos. 61377089 and 61527819, by Shanxi Province Natural Science Foundation under Grant No. 2015011049, by Research Project by Shanxi Province Youth Science and Technology Foundation under Grant No. 201601D021069, and by Research Project Supported by Shanxi Scholarship Council of China under Grant No. 2016-036; Key Science and Technology Research Project based on Coal of Shanxi Province (MQ2014-09), by program for the Outstanding Innovative Teams of Higher Learning Institutions of Shanxi, by Program for Sanjin Scholar.

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Copyright information

© The Author(s) 2017

Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

Authors and Affiliations

  • Jian Li
    • 1
    • 2
  • Yunting Li
    • 1
    • 2
  • Mingjiang Zhang
    • 1
    • 2
  • Yi Liu
    • 1
    • 2
  • Jianzhong Zhang
    • 1
    • 2
  • Baoqiang Yan
  • Dong Wang
    • 1
    • 2
  • Baoquan Jin
    • 1
    • 2
  1. 1.Key Laboratory of Advanced Transducers and Intelligent Control System of Ministry of EducationTaiyuan University of TechnologyTaiyuanChina
  2. 2.College of Physics and Optoelectronics, Institute of Optoelectronic EngineeringTaiyuan University of TechnologyTaiyuanChina

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