弹道学报2025，Vol.37Issue(4)：94-101,8.DOI:10.12115/ddxb.2025.07003
近程防空制导弹药超低空拦截多约束制导律设计
Multi-constrained Guidance Law Design for Ultra-low-altitude Interception of Short-range Air Defence Guided Projectile
摘要
Abstract
When intercepting ultra-low-altitude penetration targets in complex operational environments,the radar seekers of short-range air defence guided projectiles suffer from degraded tracking accuracy due to multipath effects.Constraining the line-of-sight(LOS)angle near the Brewster angle can mitigate clutter interference and enhance guidance accuracy.Based on this principle,a multi-constrained rapidly convergent nonsingular terminal sliding mode precision guidance law that satisfies multiple constraints and offers fast convergence was developed in this paper.Firstly,a nonsingular fast terminal sliding surface was constructed along with a novel power-based reaching law,leading to a guidance law that enforces the Brewster angle constraint during ultra-low-altitude interception missions.Secondly,considering the practical velocity decay of the projectile during flight,the effect of velocity decay was incorporated into simulations under multiple typical ultra-low-altitude interception scenarios.Then,Lyapunov stability of the designed guidance law was analyzed,and simulations and comparative analyses were carried out.The results demonstrate that the designed guidance law effectively intercepts targets while strictly satisfying LOS angle constraints.It significantly reduces the time required to achieve the angle constraints and enhances strike accuracy and operational reliability of the short-range air defence guided projectiles,thus providing valuable references for guidance law design.关键词
近程防空/制导弹药/超低空/多约束制导律/布儒斯特角Key words
short-range air defence/guided projectile/ultra-low-altitude/multi-constrained guidance law/Brewster angle分类
军事科技引用本文复制引用
郑文慧,王旭刚..近程防空制导弹药超低空拦截多约束制导律设计[J].弹道学报,2025,37(4):94-101,8.基金项目
中央高校基本科研业务费专项资金资助(30919011401) （30919011401）
