电测与仪表2025，Vol.62Issue(2)：69-75,7.DOI:10.19753/j.issn1001-1390.2025.02.009
基于S-G和CEEMDAN技术的光纤光栅传感信号降噪方法研究
Research on de-noising method of optical fiber grating sensing signal based on S-G and CEEMDAN technology
摘要
Abstract
Aiming at the problems of low accuracy and poor reliability of existing signal de-noising methods in the signal processing of fiber Bragg grating sensing system,based on the principle of fiber Bragg grating sensing,a sig-nal de-noising method of fiber Bragg grating sensing system combining complete ensemble empirical mode decompo-sition with adaptive noise(CEEMDAN)method and S-G filtering method is proposed.The CEEMDAN method is used to decompose the sensor system signal,perform S-G filtering on the decomposed intrinsic mode functions(IMF)component,and reconstruct the filtered IMF component.Through the comparative analysis of various noise containment conditions,the feasibility of the proposed method is verified.The results show that compared with the traditional de-noising method,the proposed method has better de-noising performance,the wavelength fluctuation is greatly reduced by more than 90％,and the signal-to-noise radio(SNR)and peak signal-to-noise radio(PSNR)indicators are increased by about 1 dB,which can effectively reduce the signal noise under the premise of maintai-ning the detailed characteristics of the sensing signal,which has certain use value.关键词
光纤光栅/传感系统/信号降噪方法/CEEMDAN方法/S-G滤波Key words
fiber Bragg grating/sensing system/signal de-noising method/CEEMDAN method/S-G filtering分类
信息技术与安全科学引用本文复制引用
黄刚,潘李克,何成章,杨成丰,李忠,弓少康..基于S-G和CEEMDAN技术的光纤光栅传感信号降噪方法研究[J].电测与仪表,2025,62(2):69-75,7.基金项目
国家重点研发计划项目(2017YFB0903100) （2017YFB0903100）
国网浙江省电力公司科技项目(2020-YF-YJSY-01) （2020-YF-YJSY-01）
