Signal-to-noise ratio improvement of Brillouin optical time domain analysis system based on empirical mode decomposition and finite impulse response

2020 ◽  
Vol 59 (14) ◽  
pp. 4220
Author(s):  
Jieru Zhao ◽  
Tao Wang ◽  
Qian Zhang ◽  
Mingjiang Zhang ◽  
Jianzhong Zhang ◽  
...  
Keyword(s):  
Empirical Mode Decomposition ◽  
Impulse Response ◽  
Time Domain ◽  
Finite Impulse Response ◽  
Signal To Noise Ratio ◽  
Time Domain Analysis ◽  
Signal To Noise ◽  
Mode Decomposition ◽  
Optical Time ◽  
Analysis System

Performance Improvement Method of Rayleigh Brillouin Optical Time Domain Analysis System

2017 ◽  
Vol 37 (1) ◽  
pp. 0106001 ◽  
Author(s):  
李永倩 Li Yongqian ◽  
张立欣 Zhang Lixin ◽  
李晓娟 Li Xiaojuan ◽  
杨润润 Yang Runrun
Keyword(s):  
Performance Improvement ◽  
Time Domain ◽  
Time Domain Analysis ◽  
Domain Analysis ◽  
Improvement Method ◽  
Optical Time ◽  
Analysis System

Review of Methods for Improving Performance of Brillouin Optical Time-Domain Analysis System

2018 ◽  
Vol 55 (11) ◽  
pp. 110003
Author(s):  
王健健 Wang Jianjian ◽  
李永倩 Li Yongqian
Keyword(s):  
Time Domain ◽  
Time Domain Analysis ◽  
Domain Analysis ◽  
Optical Time ◽  
Analysis System

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

2012 ◽  
Vol 198-199 ◽  
pp. 1621-1626 ◽  
Author(s):  
You Ping Zhong ◽  
Qi Zhang ◽  
Di Zhou
Keyword(s):  
Optical Fiber ◽  
Empirical Mode Decomposition ◽  
Signal To Noise Ratio ◽  
Noise Cancellation ◽  
Raman Signal ◽  
Signal To Noise ◽  
Mode Decomposition ◽  
Improve Measurement ◽  
Distributed Optical Fiber ◽  
Anti Stokes

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.

Pre-Pump Brillouin Optical Time Domain Analysis System Based on Double-Sideband Interference

2021 ◽  
Vol 58 (1) ◽  
pp. 0106003
Author(s):  
秦莉 Qin Li ◽  
王澜澜 Wang Lanlan ◽  
梁浩 Liang Hao ◽  
程凌浩 Cheng Linghao
Keyword(s):  
Time Domain ◽  
Time Domain Analysis ◽  
Domain Analysis ◽  
Optical Time ◽  
Analysis System
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