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Proceedings Paper

Application of based on improved wavelet algorithm in fiber temperature sensor
Author(s): Hui Qi; Wenjuan Tang
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Paper Abstract

It is crucial point that accurate temperature in distributed optical fiber temperature sensor. In order to solve the problem of temperature measurement error due to weak Raman scattering signal and strong noise in system, a new based on improved wavelet algorithm is presented. On the basis of the traditional modulus maxima wavelet algorithm, signal correlation is considered to improve the ability to capture signals and noise, meanwhile, combined with wavelet decomposition scale adaptive method to eliminate signal loss or noise not filtered due to mismatch scale. Superiority of algorithm filtering is compared with others by Matlab. At last, the 3km distributed optical fiber temperature sensing system is used for verification. Experimental results show that accuracy of temperature generally increased by 0.5233.

Paper Details

Date Published: 5 March 2018
PDF: 8 pages
Proc. SPIE 10710, Young Scientists Forum 2017, 107101A (5 March 2018); doi: 10.1117/12.2316771
Show Author Affiliations
Hui Qi, Beijing Univ. of Technology (China)
Wenjuan Tang, Beijing Univ. of Technology (China)

Published in SPIE Proceedings Vol. 10710:
Young Scientists Forum 2017
Songlin Zhuang; Junhao Chu; Jian-Wei Pan, Editor(s)

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