基于平滑优化的弹道导弹落点外推方法  

Extrapolation Method of Ballistic Missile Impact Point Based on Smoothing Optimization

作　　者：代霞 方睿 靳俊峰[1,2] 刘军伟 DAI Xia;FANG Rui;JIN Jun-feng;LIU Jun-wei(The 38th Research Institute of CETC,Hefei 230088,China;Key Laboratory of Aperture Array and Space Application,Hefei 230088,Chi)

机构地区：[1]中国电子科技集团公司第三十八研究所,安徽合肥230088 [2]孔径阵列与空间探测安徽省重点实验室,安徽合肥230088

出　　处：《舰船电子对抗》2022年第5期68-72,共5页Shipboard Electronic Countermeasure

摘　　要：为提高雷达弹道导弹落点外推的精度,提出了一种基于平滑优化思想的弹道导弹落点外推方法。在对雷达量测按时间先后顺序进行常规滤波之后,先进行一次平滑,优化时间靠前的点迹信息,再对优化后的点迹信息按时间反向顺序进行二次平滑,对最新关联点迹信息进行二次优化,最后利用二次优化的最新关联点作为初始点进行落点外推。利用系统工具箱(STK)软件进行弹道仿真试验,结果表明该方法可以有效提高落点外推的精度。In order to improve the extrapolation precision of the ballistic missile impact point,an extrapolation method of ballistic missile impact point based on the idea of smooth optimization is proposed.This paper firstly performs the first smoothing and optimizes the time-front point information after the conventional filtering of radar measurement according to the time sequence;then performs second smoothing to the optimized point information in the reverse order of time,and performs second optimization to the latest correlation point information;finally uses the latest correlation point of the second optimization as the initial point to extrapolate the impact point.The trajectory simulation experiment based on system tool kit(STK)software indicates that the extrapolation accuracy of impact points can be effectively improved.

关 键 词：弹道外推 不敏卡尔曼滤波 不敏卡尔曼平滑 

分 类 号：TN953[电子电信—信号与信息处理] TJ013[电子电信—信息与通信工程]