光通信技术2024，Vol.48Issue(1)：46-50,5.DOI:10.13921/j.cnki.issn1002-5561.2024.01.09
基于Lorentzian模型与伪Voigt模型的谱拟合算法的准确性比较
Accuracy comparison of spectrum fitting algorithms based on Lorentzian model and pseudo-Voigt model
莫巧灵1
作者信息
- 1. 广西安全工程职业技术学院电子与信息安全系,南宁 530100
- 折叠
摘要
Abstract
In order to compare the accuracy of two spectrum fitting algorithms based on the Lorentzian model and the pseu-do-Voigt model,a distributed optical fiber sensing principle based on Brillouin scattering is used.Firstly,the calculation results of the measured Brillouin spectra using the Lorentzian model and the pseudo-Voigt model are compared.Then,The Brillouin spec-trum with different shapes and signal-to-noise ratios is generated numerically through the pseudo-Voigt model,and the Brillouin frequency shift is calculated using spectral fitting methods based on the Lorentzian model and the pseudo-Voigt model,respec-tively.Finally,the accuracy of these two algorithms is compared.The simulation results show that underdifferent Brillouin spec-trum shapes and signal-to-noise ratio conditions,the computational accuracy of the spectrum fitting algorithm based on the Lorentzian model and the pseudo-Voigt model is similar,but the former requires less computation than the latter.关键词
布里渊谱/布里渊频移/分布式光纤传感/Lorentzian模型/伪Voigt模型Key words
Brillouin spectrum/Brillouin frequency shift/distributed optical fiber sensing/Lorentzian model/pseudo-Voigt model分类
信息技术与安全科学引用本文复制引用
莫巧灵..基于Lorentzian模型与伪Voigt模型的谱拟合算法的准确性比较[J].光通信技术,2024,48(1):46-50,5.
