Distributed Optical Fiber Raman Signal Noise Cancellation Based on Empirical Mode Decomposition

Abstract:

The distributed optical fiber Raman sensor system was widely used for real-time measurement temperature, but the Anti-Stokes and Stokes scattering Raman signal is very weak. In order to improve measurement accuracy the signal must be denoised before obtaining the temperature. In this paper, a new noise cancellation of empirical mode decomposition is proposed for enhancing signal-to-noise ration of the Anti-Stokes and Stokes scattering Raman signal. The signal-to-noise ratio was enhanced by using this method and it is easy to be realized in computer.

• Periodical: Applied Mechanics and Materials (Volumes 198-199)
• Pages: 1621-1626
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.198-199.1621
• Online since: September 2012
• Authors: You Ping Zhong, Qi Zhang, Di Zhou
• Keywords: Distributed Optical Fiber Raman Signal, Empirical Mode Decomposition (EMD), Signal-to-Noise Ratio (SNR)

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