一种提高雷达远距离机动目标精度的算法  

An Algorithm for Enhancing the Tracking Accuracy of Radar Long Range Maneuvering Target

作　　者：徐晓群[1] 

机构地区：[1]南京电子技术研究所,南京210013

出　　处：《现代雷达》2008年第6期54-56,共3页Modern Radar

摘　　要：在分析雷达对远距离机动目标跟踪速度精度要求和存在困难的基础上,提出了一种提高三坐标雷达速度估计精度的滤波算法。该算法将三维空间中目标的运动描述为切向和法向加速度机动的非线性状态方程,采用机动目标"当前"统计模型,建立了基于雷达三坐标测量的自适应扩展卡尔曼滤波算法。仿真结果表明,该算法可明显提高远距离目标机动段的速度精度。From the analysis of tracking velocity accuracy requirement as well as the exiting difficulties in radar long range maneuvering target tracking,a filtering algorithm is proposed to enhance the estimated velocity accuracy of three-dimensional ra- dar.According to this algorithm,the target motion in three-dimensional space is described by a nonlinear state equation,including tangential and normal accelerations.On the basis of the radar measured three-dimensional coordinates,an adaptive extended Kal- man filte...

关 键 词：机动目标跟踪 “当前”统计模型 扩展卡尔曼滤波 

分 类 号：TN953[电子电信—信号与信息处理]