基于水平时谐电偶极子模型的舰船轴频磁场传播特性分析  

Analysis of Ship Shaft Frequency Magnetic Field Propagation Characteristics Based on Horizontal Time-Harmonic Electric Dipole Model

作　　者：庞鑫 刘忠乐[1] 文无敌 林朋飞 林嘉 唐琼婕 史润泽 PANG Xin;LIU Zhongle;Wen Wudi;LIN Pengfei;Lin Jia;TANG Qiongjie;SHI Runze(College of Power Engineering,Naval University of Engineering,Wuhan 430033,China;Shandong Military Region Data Information Office,Jinan 250000,China;The No.75222 nd Troopof PLA,Quanzhou 362000,China;The No.32382 nd Troop of PLA,Wuhan 430033,China)

机构地区：[1]海军工程大学兵器工程学院,武汉430033 [2]山东省军区数据信息室,济南250000 [3]75222部队,福建泉州362000 [4]32382部队,武汉430033

出　　处：《兵器装备工程学报》2021年第12期183-187,共5页Journal of Ordnance Equipment Engineering

基　　金：国家自然科学基金项目(51509252)。

摘　　要：为更好地探测识别舰船的轴频信号特征,基于水平时谐电偶极子对舰船轴频磁场在海水中和空气中产生的磁场进行了建模。分析了水平时谐电偶极子在空气中和海水中的矢量磁位,根据麦克斯韦方程组得到了水平时谐电偶极子的磁场分布,分析了不同水深和空中不同高度下磁场的分布特性。由仿真分析可以看出,不同深度的水平电偶极子在海水中,B_(y)磁场分量较其他分量变化小,在空气中不同高度上,B_(z)磁场分量较其他分量变化小,将来可以作为轴频目标检测分析的重点。此外通过南海试验,得到实测数据与模型分析数据特征基本吻合,验证了轴频磁场模型的可行性。In order to better detect and identify the characteristics of the ship’s shaft frequency signal for target detection,this paper modeled the magnetic field generated by the ship’s shaft frequency magnetic field in sea water and air based on a horizontal time-harmonic electric dipole.The vector magnetic potential of the horizontal time-harmonic electric dipole in the air and sea water was analyzed,and then the magnetic field distribution of the horizontal time-harmonic electric dipole was obtained according to Maxwell’s equations.At the same time,we analyzed the magnetic field under different water depths and air heights distribution characteristics.From the simulation analysis of horizontal electric dipoles of different depths,it can be seen from the simulation analysis that the B_(z)magnetic field component changes less than other components.At different heights in the air,the B_(z) magnetic field component changes less than other components.It can be used as axis frequency target detection in the future.In addition,through the South China Sea test,the characteristics of the measured data and the model analysis data are basically consistent,verifying the feasibility of the shaft frequency magnetic field model.

关 键 词：轴频磁场 水平时谐电偶极子 轴频探测 

分 类 号：TJ83[兵器科学与技术—武器系统与运用工程]