基于约束渐进扩展卡尔曼滤波的船舶电场跟踪定位方法  

Method of ship electric field tracking and positioning based on constrained progressive extended Kalman filter

作　　者：孙宝全[1] 颜冰[1] 姜润翔 张伽伟 SUN Bao-quan;YAN Bing;JIANG Run-xiang;ZHANG Jia-wei(College of Weaponry Engineering,Naval Univ.of Engineering,Wuhan 430033,China)

机构地区：[1]海军工程大学兵器工程学院

出　　处：《海军工程大学学报》2018年第6期30-35,共6页Journal of Naval University of Engineering

基　　金：国家自然科学基金资助项目(41476154);国家自然科学基金青年基金资助项目(51509252)

摘　　要：为了利用船舶静电场实现对目标的跟踪、定位,首先分析了目标船舶的运动特征,建立了其状态空间模型;然后,利用点电源阵列建立了船舶等效源模型,并推导出船舶跟踪的观测方程;最后,根据物理模型,对状态估计量施加了线性约束,从而使其符合物理实际。仿真结果表明:该方法可以对船舶目标进行有效的跟踪定位,具有较好的应用价值。The static electric field resulting from corrosion or anticorrosion current of a ship is an important signal characteristic that can be used to track and locate the ship.Thus,a method of tracking and locating the ship based on progressive extended Kalman filter is proposed.Firstly,the state space model is established on the basis of analysis of the moving characteristics of the target ship.Then,the ship equivalent model is established using the point current source line array,and the observation equation launches.Finally,a linear constraint is imposed on the state space model according to the physical model,so that it is consistent with the physical reality.The simulation results show that the method has good application prospect in terms of effective tracking and locating of ship targets.

关 键 词：电场跟踪定位 点电源阵列模型 状态空间模型 渐进扩展卡尔曼滤波 

分 类 号：TJ83[兵器科学与技术—武器系统与运用工程]