数据挖掘的光纤布拉格光栅峰值检测  

Fiber Bragg grating peak detection in data mining

作　　者：吕淙 魏保龙 LV Cong;WEI Baolong(Yichun University,Yichun Jiangxi 336000,China)

机构地区：[1]宜春学院,江西宜春336000

出　　处：《激光杂志》2023年第6期161-166,共6页Laser Journal

基　　金：江西省教育厅科技课题(No.GJJ209932)。

摘　　要：以实现高精度峰值检测,并提升光纤布拉格光栅解调稳定性,提出数据挖掘的光纤布拉格光栅峰值检测算法。采集光纤光栅传感信号,并进行噪声去除,采用光纤布拉格光栅折射光谱确定波形数据,获取峰值检测阈值,校正及补偿后得到峰值位置,判断波峰达标与否,确保峰值检测结果精准无误。实验结果表明:所提方法的信号去噪效果较好,能够完整保留原始信号中的有效信息;该方法检测的最终峰值位置结果为1552.396 nm,与实际峰值位置误差极小,峰值检测精度最高可达98.92%,峰值检测结果具有较高精度。In order to achieve high-precision peak detection and improve the stability of fiber Bragg grating demodulation,a data mining algorithm for fiber Bragg grating peak detection is proposed.Collect the fiber Bragg grating sensing signal,remove the noise,use the fiber Bragg grating refraction spectrum to determine the waveform data,obtain the peak detection threshold,obtain the peak position after correction and compensation,judge whether the wave peak meets the standard,and ensure the accuracy of the peak detection result.The experimental results show that the signal denoising effect of the proposed method is better,and the e the effective information in the original signal can be completely retained.The final peak position detected by this method is 1552.396 nm,which has a very small error with the actual peak position,and the peak detection accuracy can reach up to 98.92%,and the peak detection result has high accuracy.

关 键 词：数据挖掘 光纤布拉格 光栅峰值检测 可调谐滤波器 信号函数 超图模型 

分 类 号：TN929[电子电信—通信与信息系统]