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.
作者
熊朝华
刁联旺
张桂林
XIONG Zhaohua;DIAO Lianwang;ZHANG Guilin(Science and Technology on Information Systems Engineering Laboratory,Nanjing 210007,China)
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。
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
2D-radar-network
target altitude estimation
least square estimation
maximum likelihood estimation
Cramer-Rao low bound
