基于双圆阵列的轴频场源定位方法  

Research on source of the shaft-rate electric field location based on double circle array

作　　者：王海光 王向军[1] 张建春[1] WANG Hai-guang;WANG Xiang-jun;ZHANG Jian-chun(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：《舰船科学技术》2020年第21期110-115,共6页Ship Science and Technology

基　　金：国家自然科学基金面上资助项目(41476153)。

摘　　要：为了能够通过舰船轴频电场信号实现对舰船的精确定位,提出基于双圆阵列的轴频场源定位方法。利用水平时谐电偶极子对舰船在浅海中产生的轴频电场进行建模,并在海底布设两端分别安装有三分量电场传感器的连杆,连杆以一定速度旋转模拟圆形探测阵列对轴频信号进行测量。仿真计算得到某一深度下轴频场源在2个圆阵列上直径两端产生的电场强度差值波及其随场源位置变化的规律,船模实验验证了这一规律的正确性。仿真结果表明,在准近场环境下,通过测得的方位角及两圆阵列的位置关系可实现舰船位置定位,具有较高的定位精度。In order to locate the ship through the shaft-rate electric field signal, a positioning method of the source of shaft-rate electric field based on double circular array is proposed. Using horizontal time harmonic electric dipole to model the shaft-rate electric field generated by the ship in shallow sea. The connecting rod with three-component electric field sensors on both ends of it was installed on the seabed. The connecting rod rotates at a certain speed to simulate the circular detection array to measure the shaft-rate signal. The differencial wave of electric field intensity produced by the source of shaft-rate electric field at both ends of the diameter of the two circular arrays at a certain depth and its variation with the position of the source of field are obtained by simulation calculation. The correctness of this rule is verified by ship model experiments. The simulation results show that, in quasi-near-field environment, the location of the source of field can be achieved by measuring the azimuth angle and the position relationship between the two circular arrays. The positioning accuracy is high.

关 键 词：水平电偶极子 双圆阵列 轴频电场 电场强度差值波 准近场 

分 类 号：TN95[电子电信—信号与信息处理]