2D雷达组网空中目标高度估计方法综述  

Review of Aerial Target Altitude Estimation Methods in 2D⁃Radar⁃Network

作　　者：熊朝华[1] 刁联旺[1] 张桂林[1] XIONG Zhaohua;DIAO Lianwang;ZHANG Guilin(Science and Technology on Information Systems Engineering Laboratory,Nanjing 210007,China)

机构地区：[1]信息系统工程重点实验室,南京210007

出　　处：《指挥信息系统与技术》2020年第2期9-14,共6页Command Information System and Technology

基　　金：江苏省自然科学基金(BK20160148)资助项目。

摘　　要：概述了2D雷达组网如何利用多部2D雷达探测的距离和方位数据估计空中目标高度的基本思想,阐述并分析了运用几何计算法、最小二乘法、极大似然法及状态滤波法及其改进方法对空中目标高度进行估计的适用范围及其优缺点。仿真试验表明,雷达探测精度、雷达站址空间布局及空中目标高度等因素均对目标高度估计精度影响较大。最后,给出了未来2D雷达组网空中目标高度估计研究方向。The basic idea of how to make full use of the slant range and bearing information detected by multiple 2D radars in 2D-radar-network to estimate the altitudes of aerial targets is summarized.The basic algorithm and some improved algorithms for estimating the altitudes of aerial targets by using space analytic geometry calculation algorithm,least square method,maximum likelihood method,and filtering method are expounded.Besides,the applicable scope,advantages and disadvantages of various algorithms of estimating the altitude of aerial target are analyzed.The simulation results show that the radar detection accuracy,the spatial layout of the radar station location,the flight height of the aerial target and other factors have a great influence on the estimation accuracy of the target altitude estimation algorithm.Finally,the future research direction is pointed out.

关 键 词：2D雷达组网 高度估计 最小二乘估计 极大似然估计 Crame Rao下界 

分 类 号：TP953[自动化与计算机技术] TN957[电子电信—信号与信息处理]