Cooperative attack strategy during the terminal guidance phase for loitering munitions based on impact angle and impact time constraints

基于落角和时间约束的巡飞弹末端协同打击策略

¹ Xi'an Modern Control Technology Research Institute, Xi'an 710065, China
² School of Astronautics, Northwestern Polytechnical University, Xi'an 710072, China

Received: 23 April 2023

Abstract

In order to solve the cooperative attack problem during the terminal guidance phase for loitering munition swarm, a cooperative attack strategy for loitering munitions with impact angle constraints is proposed. By using the small deviation method, an offset proportional guidance law with impact angle constraints is derived in order to solve the problem of directional strike in the longitudinal plane. Combining with the present guidance scheme, a method for estimating the remaining time of proportional control and angle control is derived. In the lateral plane, a time control bias term with time-varying coefficients and no singularity in the division of zero is designed to solve the time control problem. In addition, taking the remaining time as the coordination variable, a two-layer cooperative architecture is used to solve the problem of coordinated directional strike of multiple loitering munitions. The simulation results show that the cooperative guidance strategy has a good performance of impact angle control and cooperative attack for low-speed loitering munitions.

摘要

为解决集群巡飞弹末制导阶段协同定向打击问题, 提出了一种具有落角约束的巡飞弹末端协同打击策略。基于小偏差方法, 推导了一种具有落角约束的偏置比例制导律, 以解决纵向平面定向打击问题。结合所提制导方案, 推导了综合考虑比例控制项和角度控制项剩余时间估计方法。在侧向平面内, 设计了一种具有时变系数且不存在除零奇异问题的时间控制偏置项, 以解决时间控制问题。此外, 以剩余时间为协调变量, 利用双层协同架构来解决多枚巡飞弹协同定向打击问题。仿真结果验证了该协同制导策略良好的落角控制和协同打击性能。