磁单极子阵列总场异常反演建模  

Modeling technology of total field anomaly inversion by magnetic monopole array

作　　者：郭成豹[1] 台秭艳 GUO Chengbao;TAI Ziyan(College of Electrical Engineering,Naval University of Engineering,Wuhan 430033,China)

机构地区：[1]海军工程大学电气工程学院,湖北武汉430033

出　　处：《中国舰船研究》2024年第5期223-230,共8页Chinese Journal of Ship Research

基　　金：国家自然科学基金资助项目(51277176)。

摘　　要：[目的]无人机搭载总场磁传感器检测舰船上方总场异常情况时,需要建立相应的总场异常反演模型,实现对舰船水下磁特征和空中远场磁特征的评估。[方法]根据舰船上方平面测量的总场异常数据,建立基于磁单极子阵列法的舰船磁场反演模型。根据舰船上方测量的总场异常,反演得到舰船的磁单极子阵列强度,从而实现舰船水上和水下三分量磁场特征的评估分析。在实验室条件下进行磁性船模验证实验,测量船模的上方和下方平面磁场,根据上方平面测量的总场异常进行反演建模分析。[结果]结果表明,采用船体分布的三维磁单极子阵列进行总场异常反演建模,可以实现舰船上方和下方磁场评估线上三分量磁场的高精度评估分析。[结论]该反演建模技术为无人机测量舰艇磁场的工程应用奠定了理论和技术基础,为舰船磁场检测分析提供一种新的选择。[Objectives]As unmanned aerial vehicles are equipped with total field magnetic sensors to detect the total field anomaly above ships,it is necessary to establish a corresponding total field anomaly inversion model in order to evaluate the underwater magnetic signature and airborne far-field magnetic signature of ships.[Methods]A ship magnetic field inversion model based on a magnetic monopole array is established on the basis of the total field anomaly data measured on the plane above the ship.Based on this,the intensity of the ship's magnetic monopole array can be obtained,thereby realizing the evaluation and analysis of the ship's three-component magnetic field signatures above and below the ship.A laboratory validation test of a steel ship model is carried out in which the magnetic fields of the ship model are measured from above and below,and inversion modeling is conducted on the basis of the total field anomaly in the measurement plane above the ship model.[Results]The total field anomaly inversion of the three-dimensional magnetic monopole array distributed on a ship's body can be used to achieve high-precision three-component magnetic field measurements on the basis of the magnetic field evaluation lines above and below the ship.[Conclusions]The proposed total field anomaly inversion modeling technique provides a certain theoretical and technical basis for the engineering application of unmanned aerial vehicles for measuring ship magnetic fields,and provides a viable alternative for ship magnetic field detection and analysis.

关 键 词：磁场测量 磁单极子阵列 总场异常 反演 磁特征 

分 类 号：U665.18[交通运输工程—船舶及航道工程]