关键词: 临近空间目标, 协同围捕, 逆轨拦截, 虚拟目标点, 机动目标

Abstract: A cooperative encirclement interception method based on virtual aiming points is proposed for intercepting high-speed maneuvering targets in near-space within three-dimensional scenarios. By analyzing the maneuvering envelope of the target and considering the guidance characteristics of the interceptors, a calculation method for the ideal interception time of interceptor groups is derived. Thus, the problem of intercepting highly maneuvering targets is transformed into hitting a specific point on a fixed spatial plane at a predetermined time and angle. Based on this ideal interception time and impact angle, virtual aiming points are selected in space to guide the interceptors, ensuring that the impact angles meet the head-on interception conditions, thereby reducing interceptor velocity requirements. Numerical simulations were conducted against two typical maneuvering targets exhibiting C-type and S-type maneuvers. The results demonstrate that the proposed method successfully intercepts targets performing different intensities of C-type and S-type maneuvers, achieves a minimum group miss distance of less than 3 meters, satisfies the head-on interception angle requirements, and exhibits good adaptability.

Key words: near space target, cooperative encirclement interception, head on interception, virtual aiming point, maneuvering target