南京航空航天大学学报（英文版）2026，Vol.43Issue(4)：560-574,15.DOI:10.16356/j.1005-1120.2026.04.006
基于干扰观测器的组合体航天器预设时间姿态控制
Prescribed-Time Attitude Control of Combined Spacecraft Based on Disturbance Observer
摘要
Abstract
In on-orbit servicing missions,the servicing spacecraft typically docks with the target spacecraft to form a combined spacecraft to carry out subsequent tasks,and the cooperative attitude control between the two spacecraft is one of the challenging techniques.To address the issues of inertia uncertainty,communication delays,and external disturbances in combined spacecraft attitude control,a prescribed-time attitude cooperative control method based on disturbance observer is proposed.Firstly,a distributed control model for combined spacecraft is established,and a prescribed performance function with directly adjustable convergence time is designed to characterize both the transient and steady-state behaviors of the system.Secondly,integrating the backstepping method,an attitude controller based on prescribed-time performance is developed to achieve fast and accurate attitude maneuvering of the combined spacecraft.Thirdly,a disturbance observer is introduced to estimate the composite disturbance caused by inertia uncertainty and external perturbations.Meanwhile,based on consensus theory,an attitude cooperative controller is designed to compensate for the control torque mismatch caused by communication delays.The system's stability is then proved using Lyapunov method.Finally,numerical simulations demonstrate that the proposed controller achieves accurate cooperative attitude control of combined spacecraft within the prescribed time under the above disturbances.关键词
组合体航天器/姿态机动/预设时间控制/干扰观测器/鲁棒协同控制Key words
combined spacecraft/attitude maneuver/prescribed-time control/disturbance observer/robust分类
信息技术与安全科学引用本文复制引用
张浩,马松靖,华冰,逯振坤,吴云华..基于干扰观测器的组合体航天器预设时间姿态控制[J].南京航空航天大学学报（英文版）,2026,43(4):560-574,15.基金项目
This work was supported by the Na-tional Natural Science Foundation of China(No.12572054). （No.12572054）
