扩展卡尔曼滤波方法在脉冲修正弹药技术上的应用研究  

Research on the Application of Extended Kalman Filterin Pulse Correction Projectile

作　　者：王雨 WANGYu(Northwest Institute of Mechanical&Electrical Engineering,Xianyang 712099,Shaanxi,China)

机构地区：[1]西北机电工程研究所,陕西咸阳712099

出　　处：《火炮发射与控制学报》2023年第6期79-85,共7页Journal of Gun Launch & Control

摘　　要：在修正弹飞行过程中,由于雷达设备的噪声影响,其弹道测量值存在一定误差,使得制导控制系统不能准确掌握弹丸的真实飞行数据,尤其是脉冲修正动作导致的弹道变化,从而影响了对弹丸的实时控制精度。针对该问题,从雷达数据的滤波方法入手,在质点弹道方程基础上,根据目前广泛应用的扩展卡尔曼滤波算法,推导了修正弹无控弹道和有控弹道的滤波模型,通过MATLAB仿真,验证了滤波模型正确性。仿真结果表明,无控弹道数据滤波结果与理论值基本一致,有控弹道数据滤波后,弹丸高低角和方位角与理论值的误差不超过2 mrad。研究内容解决了脉冲修正弹药数据滤波问题,可为脉冲修正弹药工程化研制提供理论支撑。In the flight course of the trajectory correction projectile,the trajectory measured value has a certain error due to the radar noise,which makes the guidance and control system unable to accurate-ly obtain the real flight data of the projectile,especially the change of the trajectory caused by the pulse correction.Therefore,it affects the control accuracy.In order to solve the problem,starting with the radar data filtering method,the filtering models of the uncontrolled and controlled trajectory of cor-rection projectile were derived based on the widely used extended Kalman filter algorithm and the parti-cle trajectory equation,and the correctness of the models was verified by MATLAB simulation.The simulation results show that the uncontrolled trajectory filtering results are basically consistent with the theoretical values,and the elevation and azimuth angle errors between the theoretical values are less than 2 mard after filtering.The research solves the trajectory filtering problem of pulse correction pro-jectile,which can provide theoretical support for engineering development.

关 键 词：脉冲修正 扩展卡尔曼滤波 弹道滤波 滤波模型 

分 类 号：TJ41[兵器科学与技术—火炮、自动武器与弹药工程]