空天防御2025，Vol.8Issue(2)：50-57,8.
基于雷达相对测量的制导信息提取算法研究
Research on Guidance Information Extraction Algorithm Based on Radar Relative Measurement
摘要
Abstract
The air defence missile with a command guidance system is affected by the radar tracking error and the manoeuvring uncertainty of the incoming target.It is challenging to obtain high-precision guidance information to achieve high hit accuracy.To resolve this problem,this paper proposed a guidance information extraction algorithm using radar relative measurement.Firstly,the relative measurement error model of radar was established using the mechanism of strong correlation and small relative error between radar and target and missile measurement information system under the relative measurement system.Secondly,according to the difference in target,missile motion characteristics and measurement information,the unscented Kalman filter(UKF)method was adopted to construct the target information filtering algorithm based on the"current statistical model"and the missile motion information estimation method based on the inertial measurement information.The launch coordinate system obtained the target and the missile's position,velocity,and other motion information.Finally,the estimated information was used to reconstruct the angular rate information of the missile-eye line of sight.The simulation results show that this method can effectively reduce the influence of radar measurement error and target manoeuvre on the extraction of line-of-sight angular rate and can precisely extract guidance information.关键词
指令制导/相对测量/无迹卡尔曼滤波/视线角速率提取Key words
command guidance/relative measurement/unscented Kalman filter/line-of-sight angular rate extraction引用本文复制引用
樊朋飞,李庆波,李臻,陈成林..基于雷达相对测量的制导信息提取算法研究[J].空天防御,2025,8(2):50-57,8.基金项目
中国航天科技集团有限公司上海航天科技创新基金资助项目(SAST2022-003) （SAST2022-003）
