| 引用本文: | 李鹤宇,王建斌,张锐,宋峰.针对机动目标的航天器固定时间协同制导律[J].控制理论与应用,2026,43(2):366~374.[点击复制] |
| LI He-yu,WANG Jian-bin,ZHANG Rui,SONG Feng.Fixedd-time convergence spacecraft cooperative guidance law for maneuvering target[J].Control Theory & Applications,2026,43(2):366~374.[点击复制] |
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| 针对机动目标的航天器固定时间协同制导律 |
| Fixedd-time convergence spacecraft cooperative guidance law for maneuvering target |
| 摘要点击 123 全文点击 18 投稿时间：2023-12-04 修订日期：2025-04-26 |
| 查看全文 查看/发表评论 下载PDF阅读器 HTML |
| DOI编号 10.7641/CTA.2024.30785 |
| 2026,43(2):366-374 |
| 中文关键词 航天控制 协同制导 时间一致性 滑模控制 固定时间收敛 |
| 英文关键词 aerospace control cooperative guidance time consistency sliding mode control fixed-time convergence |
| 基金项目 173基础加强计划项目(2020–JCJQ–ZD–064–00)资助. |
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| 中文摘要 |
| 针对三维空间中多航天器协同捕获机动目标问题, 提出一种具有终端角度约束和时间一致性约束的固定
时间收敛协同制导律. 建立三维场景下航天器–目标视线(LOS)坐标系, 将加速度分解为沿视线方向和垂直视线方
向. 采用代数图论和分布式合作协议算法对航天器沿视线方向加速度进行设计, 实现多个航天器的时间一致性约
束. 采用滑模控制理论和固定时间收敛理论对垂直视线的两个方向加速度进行设计, 实现视线倾角、视线偏角在固
定时间内收敛到期望值. 针对目标加速度未知的问题, 采用固定时间观测器进行估计, 并在制导指令中进行补偿. 仿
真结果表明, 所提出的协同制导方法能够在固定时间内实现剩余飞行时间一致和视线角的收敛. |
| 英文摘要 |
| Aiming at the problem of cooperative capture of maneuvering target by multiple spacecraft in three dimensions (3D), a fixed-time convergence cooperative guidance law with terminal angle constraint and time consistency
constraint is proposed. The 3D line-of-sight (LOS) coordinate system between spacecraft and target is established, and the
acceleration is decomposed into three directions including the direction along the LOS and the directions perpendicular
to the LOS. The acceleration along the LOS is designed by algebraic graph theory and distributed cooperative protocol
algorithm to realize the time consistency constraint of multiple spacecraft. The accelerations perpendicular to the LOS
are designed by sliding mode control theory and fixed-time convergence theory, so that the LOS angles converge to the
expected value within a fixed time. In addition, the unknown target acceleration is estimated by a fixed-time observer and
compensated in the guidance command. The simulation results show that the proposed cooperative guidance method can
achieve the convergence of time-to-go and the terminal LOS angle within a fixed time. |