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教研室：光纤传感与器件

发表刊物：Applied Optics

关键字：Optical sensing and sensors;Scattering, stimulated Brillouin; Optical amplifiers

摘要：Due to the similarity of Brillouin optical time domain analyzer (BOTDA) signals, image denoising could be utilized to remove the noise. However, the performance can be much degraded due to inaccurate noise level estimation. By numerical and experimental study, we compare the noise level estimation of three different methods for BOTDA: calculating the standard deviation (STD) of the measurements, a filter-based estimation algorithm, and a patch-based estimation algorithm proposed in this paper, which selects weak textured patches of BOTDA signal and then estimates noise level using principal...

全部作者：Han Wu, Qiheng He, Wei Sun, Naitian Xue, Bin Zhang, Zinan Wang, Xinhong Jia,Xianyang Qian

第一作者：Xianyang Qian

论文类型：基础研究

通讯作者：Zinan Wang

学科门类：工学

一级学科：光学工程

卷号：56

期号：16

页面范围：Applied Optics 56, 4727-4734

是否译文：否

发表时间：2017-06-01