考虑非对称重叠光谱的FBG传感网络带宽资源多目标优化配置  

Multi-Objective Optimal Configuration of Bandwidth Resources in FBG Sensor Network for Asymmetric Overlapping Spectra

作　　者：江灏[1,2] 林朝晖[1,2] 陈静 缪希仁 Jiang Hao;Lin Chaohui;Chen Jing;Miao Xiren(College of Electrical Engineering and Automation,Fuzhou University,Fuzhou,Fujian 350108,China;Research Institute of Power System&Power Equipment,Fuzhou University,Fuzhou,Fujian 350108,China)

机构地区：[1]福州大学电气工程与自动化学院,福建福州350108 [2]福州大学电力系统与装置产业研究院,福建福州350108

出　　处：《光学学报》2021年第10期55-65,共11页Acta Optica Sinica

基　　金：国家自然科学基金(61703106,61703105)。

摘　　要：提出适用于非对称重叠光谱的布拉格光纤光栅(FBG)传感网络多目标带宽资源优化模型,借助多目标优化算法NSGA-II获得带宽资源的帕累托最优配置,从中选取合适的解来确定各FBG节点的布拉格波长分配。实验证明,该方法能够节约40%以上的光源带宽,提高了传感网络多路复用能力,同时将相邻FBG的光谱重叠程度降为最低,保障了高水平测量精度。本文提出的带宽资源多目标优化配置方法可为工程实施中的多种配置需求提供参考。In this paper,we proposed a multi-objective optimization model of bandwidth resources in the fiber Bragg grating(FBG)sensor network which is applicable to asymmetric overlapping spectra.Then,the non-dominated sorting genetic algorithm II(NSGA-II)was used to obtain the Pareto front of bandwidth resources,from which appropriate solutions were selected to determine the Bragg wavelength allocation at each FBG node.Experiments show that this method can save at least 40%of the bandwidth of the light source.While improving the multiplexing ability of the sensor network,it minimizes the overlapping of adjacent FBG spectra,maintaining high measurement accuracy.This method provides a reference for the allocation requirements in practical engineering applications.

关 键 词：光纤光学 光纤光栅传感网络 非对称光谱 波分复用 多目标优化 

分 类 号：TN253[电子电信—物理电子学]