光通信技术2017，Vol.41Issue(7)：37-39,3.DOI:10.13921/j.cnki.issn1002-5561.2017.07.010
单项Sobel算子提高φ-OTDR信噪比方法的研究
Study of improving the signal-noise ratio of φ-OTDR based on single Sobel operator
卢珍1
作者信息
- 1. 华南理工大学广州学院计算机工程学院,广州510800
- 折叠
摘要
Abstract
This paper introduces the principle and signal processing method of the distributed optical fiber sensing system based on φ-OTDR,it proposes the use of the Sobel operator to handle the difference of multiple Rayleigh scattering signals for improving the overall signal-noise ratio(SNR).With analysis of the correlation of multiple Rayleigh scattering,the single Soble operator is used to peak step signal of vibration point in φ-OTDR system,in this way,the peak amplitude of vibration point is improved,the influence of random noise is suppressed,and the noise-signal is further improved.关键词
光纤光学/分布式光纤传感器/相位敏感光时域反射计/Sobel算子/信噪比Key words
fiber optics/distributed optical fiber sensors/phase-sensitive optical time domain reflectometer/Sobel operator/signal-noise ratio分类
信息技术与安全科学引用本文复制引用
卢珍..单项Sobel算子提高φ-OTDR信噪比方法的研究[J].光通信技术,2017,41(7):37-39,3.
