使用双矢量传感器定位深海中水平直流电偶极子源  

Localization of a horizontal electric dipole source embedded in deep sea by using two vector-sensors

作　　者：包中华[1] 龚沈光[1] 孙剑英[2] 李俊[1] 

机构地区：[1]海军工程大学兵器工程系 [2]92664部队

出　　处：《海军工程大学学报》2011年第3期53-57,共5页Journal of Naval University of Engineering

基　　金：国家部委基金资助项目(51444110104JB1108)

摘　　要：船舶在海水中产生的电场是一种重要的目标特性,一般可用水平直流电偶极子的场进行模拟。基于空气-海水两层模型的假设条件,提出了一种海水中水平直流电偶极子源定位方法。该方法利用水平直流电偶极子的水下电场分布特征,通过在垂直海面方向布置两个三轴电场传感器测得相应位置的电场强度,就能反演估计出偶极子在水平面内相对于测量点的位置。仿真计算结果表明:该方法具有良好的定位效果,且易于工程实现,在水平距离ρ>65 m时,距离估计相对误差Δρ小于3%,方位估计绝对误差Δφ小于0.1°。The electric field generated by a ship in the sea is a kind of important characteristics of the ship,which is generally similar to the field of a horizontal electric dipole（HED）.This paper presents an approach to localizing a HED source embedded in deep sea on the basis of the air-sea two-layer model.Two 3-axis electric field sensors plumbing to the air-sea surface were deployed,by which the field data was acquired.Then by using the proposed method to deal with the underwater electric field distribution features of the HED,the position can be estimated successfully.The simulation results show that the proposed method is so good in localization as to be easily adopted.As for the horizontal distance ρ65 m,the method can ensure that the relative distance estimation error Δρ is smaller than 3% and the absolute azimuth estimation error Δφ is smaller than 0.1°.

关 键 词：信息处理技术 定位 电场强度 海水 水平电偶极子 

分 类 号：TM153[电气工程—电工理论与新技术]