弹道学报2025，Vol.37Issue(2)：76-82,7.DOI:10.12115/ddxb.2024.11004
滑翔制导炮弹空中滚转角在线估计
Online Estimation of Roll Angle for Gliding-guided Projectiles
王飞 1程炀 2程波 1杜韩东 2张康康2
作者信息
- 1. 南京理工大学 机械工程学院,江苏 南京 210094||西南技术工程研究所,重庆 400039
- 2. 西南技术工程研究所,重庆 400039
- 折叠
摘要
Abstract
The gliding-guided projectile employs in-flight power-on for alignment.The roll angle is utilized to initialize the inertial navigation and resolve guidance command.Therefore,roll angle accuracy is vital for precisely striking of the guided projectile.In this paper,a new method was proposed to improve the roll angle accuracy of guided projectile by online estimate and real-time correction of roll angle errors during the glide phase.Firstly,based on the attitude kinematics and roll stabilization control,the roll alignment was achieved by gyroscope.Secondly,the guidance and control model incorporating roll alignment error was built.The mathematical relationship between roll alignment error and overload in quasi body frame was derived to modify the roll angle on basis of the instantaneous equilibrium principle and projectile trajectory feature.Finally,the overloads in quasi body frame can be estimated by extracting the satellite velocity signal using differential-tracker.Simulation results show that the roll angle alignment error can reach 15.5°due to various influencing factors.Considering all deviation conditions,the roll angle accuracy is improved to within 5°through the proposed method,demonstrating both effectiveness and strong robustness.Besides,the results based on the flight experiment also show the effectiveness of the proposed method,which can be applicated in engineering implementation.关键词
制导炮弹/制导控制/空中对准/滚转角估计Key words
guided projectile/guidance and control/in-flight alignment/roll angle estimation分类
武器工业引用本文复制引用
王飞,程炀,程波,杜韩东,张康康..滑翔制导炮弹空中滚转角在线估计[J].弹道学报,2025,37(2):76-82,7.
