一种带落角约束的三维精确制导律  

Three-Dimensional Precision Guidance Law with Impact Angle Constraint

作　　者：蔡勇 CAI Yong(The System Design Institute of Mechanical-Electrical Engineering,Beijing 100854,China)

机构地区：[1]北京机电工程总体设计部

出　　处：《现代防御技术》2019年第4期24-29,37,共7页Modern Defence Technology

摘　　要：为解决三维全向攻击制导问题,提出了一种新的制导律,在理想条件下,它能同时获得零脱靶量且满足任意三维落角约束要求。该方法将二维落角控制导引律(IACNG)扩展为三维,并利用四元数理论推导三维旋转矢量修正项。它不需要提供弹目距离测量信息和剩余飞行时间估计信息,适用于主动和被动寻的制导。仿真结果表明,该制导律满足脱靶量和全向落角约束要求,且在弹道末端需用法向过载接近0。A new three-dimensional precision guidance law is presented for solving the omni-directional impact angle control problem. Under ideal conditions, it can achieve zero miss distance and satisfy any desired three-dimensional impact angle constraints. It extends the two-dimensional impact angle control navigation guidance law (IACNG) into a three-dimensional method, and adds a three-dimensional correction term derived from the quaternion theory. The information of relative distance and time-to-go information are not needed by the proposed guidance law, and it is applicable for both active and passive homing guidance. Numerical simulation results demonstrate that it not only satisfies the miss distance and omni-directional impact angle constraints, but also makes the normal overload command close to zero at the impact time.

关 键 词：三维 制导律 全向攻击 主动寻的 被动寻的 落角约束 

分 类 号：TJ765[兵器科学与技术—武器系统与运用工程]