Signal processing of Sagnac fiber interferometer used as distributed sensor with wavelets

Yan Liu; Jun Jia; Pei-lin Tao; Guo-lu Yin; Zhong-wei Tan; Wen-hua Ren; Shui-sheng Jian

doi:10.1117/12.888590

3 January 2011 Signal processing of Sagnac fiber interferometer used as distributed sensor with wavelets

Yan Liu, Jun Jia, Pei-lin Tao, Guo-lu Yin, Zhong-wei Tan, Wen-hua Ren, Shui-sheng Jian

Author Affiliations +

Proceedings Volume 7990, Optical Sensors and Biophotonics II; 79900H (2011) https://doi.org/10.1117/12.888590
Event: Asia Communications and Photonics Conference and Exhibition, 2010, Shanghai, Shanghai, China

Abstract

Signal processing is studied for Sagnac fiber distributed sensors. Wavelet de-noising 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.

Citation Download Citation

Yan Liu, Jun Jia, Pei-lin Tao, Guo-lu Yin, Zhong-wei Tan, Wen-hua Ren, and Shui-sheng Jian "Signal processing of Sagnac fiber interferometer used as distributed sensor with wavelets", Proc. SPIE 7990, Optical Sensors and Biophotonics II, 79900H (3 January 2011); https://doi.org/10.1117/12.888590

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