摘要
将有用信号和噪声进行分离,提高信噪比是通信领域中一个重大的课题。介绍了相干光时域反射计(COTDR)的工作原理,针对运用COTDR检测光信号时存在的噪声问题,提出基于SVD对COTDR的降噪方法。该研究成果为COTDR信号检测的降噪算法提供了新思路。
Separating useful signals from noise and improving signal-to-noise ratio is a major issue in the field of communications.The working principle of coherent optical time domain reflectometer was introduced.Aiming at the noise problem when using COTDR to detect optical signals,a noise reduction method based on SVD for COTDR was proposed.The research provided a novel idea for the noise reduction algorithm of COTDR signal detection.
作者
周文平
曹美卿
何建森
张晋
甘性伟
罗鹏
ZHOU Wenping;CAO Meiqing;HE Jiansen;ZHANG Jin;GAN Xingwei;LUO Peng(State Grid Chongqing Hechuan Power Supply Company,Chongqing 401520,China)
出处
《电工技术》
2020年第3期40-41,共2页
Electric Engineering
关键词
相干光时域反射计
降噪
SVD
coherent optical time domainreflectometer
noise reduction
SVD
