摘要
光时域反射计(OTDR)作为现代光纤网络监控的重要部件,采集的数据只能反映光纤各点的衰耗值,无法实现智能的事件检测分析。基于小波变换信号去噪和奇异性检测的理论,通过算法实现了OTDR测量曲线的噪声抑制和OTDR事件点定位。实际测量结果表明了算法在工程应用中的可行性和有效性。
As an important component in optical fiber network monitor,the optical time domain reflectometer（OTDR） can measure the attenuation value of every sample gathered at optical fiber point,but is incapable of smartly detecting and analysing the events.In this paper,according to the theory of signal denoising and singularity detection using wavelet transform,we realise the suppression of noise in the OTDR survey curve and the location of the OTDR event points by using the algorithm.Practical surveying result shows that our algorithm is feasible and efficient in project applications.
出处
《计算机应用与软件》
CSCD
2011年第7期270-272,共3页
Computer Applications and Software
关键词
光时域反射计
小波分析
模极大值
奇异点
Optical time domain reflectometer Wavelet transform Modulus maxima Singular point
