Title :
Signal processing of Sagnac fiber interferometer used as distributed sensor with wavelets
Author :
Liu, Yan ; Jia, Jun ; Tao, Pei-lin ; Yin, Guo-lu ; Tan, Zhong-wei ; Ren, Wen-hua ; Jian, Shui-sheng
Abstract :
Signal processing is studied for Sagnac fiber distributed sensors. Wavelet denoising and wavelet decomposition are comparatively used to analyze signals in frequency domain to give smoothed frequency spectra, based on which null frequencies of the spectra are found more accurately. The analysis is helpful to more accurately locate the disturbance.
Keywords :
Sagnac interferometers; decomposition; distributed sensors; frequency-domain analysis; signal denoising; wavelet transforms; Sagnac fiber distributed sensors; Sagnac fiber interferometer; frequency domain; frequency spectra; signal processing; wavelet decomposition; wavelet denoising; Frequency conversion; Frequency domain analysis; Noise reduction; Optical fiber sensors; Sagnac interferometers; Wavelet analysis; Wavelet domain;
Conference_Titel :
Communications and Photonics Conference and Exhibition (ACP), 2010 Asia
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-7111-9
DOI :
10.1109/ACP.2010.5682721
