优化小卫星六维控力布局，用最少推进器实现轨道与姿态协同控制。
Optimal Thruster Configuration for 6-DOF Control of a Small Satellite
- 从24个推进器出发，筛选出满足6自由度控制的可行配置组。
- 在可行组中找出总推力最小的配置，降低能源消耗。
- 验证了精简后配置仍可胜任对接任务，适合资源受限的小卫星。
随着小卫星（如立方星、纳米星、皮米星和飞米星）在近地轨道（LEO）日益广泛部署，用于成像、通信、数据存储及交会对接等任务，轨道维持与姿态控制愈发重要。通常采用多推进器实现主动轨道控制，合理布置时亦可生成所需姿态控制力矩。本文从24个推进器配置出发，提出一组满足全六自由度（6-DOF）控制的可行配置组，并在其中找到实现6-DOF指令所需的最小总推力配置。进一步选取各组中的一个配置，通过典型交会对接任务评估其姿态控制性能，结果表明即使推进器数量大幅减少，仍能实现充分机动性。
原文摘要 · Abstract (English)
With the growing deployment of small satellites (such as CubeSats, Nanosats, Picosats, and Femtosats) in Low Earth Orbit (LEO) for targeted applications like imaging, communication, data storage, and rendezvous-docking mission, there is increasing attention on orbit maintenance and attitude control. A common approach for active orbit control involves the use of multiple thrusters, which, when properly arranged, can also generate the required torque for attitude control. Starting from a 24-thruster configuration, this paper presents a set of thruster configurations (referred to as a viable configuration group) that enable full six degrees of freedom (6-DOF) control. Further, configuration group that requires minimum total thrust to achieve 6-DOF commands are found among the viable configuration group. One configuration from each of these groups is further evaluated for its attitude control performance through a representative rendezvous-docking mission, demonstrating that even with a reduced thruster count, sufficient maneuverability can be achieved.
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