天宫一号目标飞行器GNC分系统容错策略设计

天宫一号目标飞行器是中国研制的新一代专门用于交会对接的大型载人航天器.为保证其长期在轨安全可靠运行,顺利完成与载人飞船的交会对接任务,以及单体飞行和组合体飞行期间的姿态和轨道控制任务,要求GNC分系统设计充分的容错策略.对GNC分系统软硬件平台进行介绍,对敏感器、执行机构以及控制器的软硬件容错策略进行详述.该策略在实际应用中得到验证,结果表明设计合理,可以有效提高GNC分系统的系统性能和可靠性.

A Fault-Tolerant Strategy Design for GNC Subsystem of Tiangong-1 Spacecraft

The Tiangong-1 spacecraft is a newly-developed spacecraft dedicated to rendezvous and docking.It is necessary to design a full fault-tolerant strategy to ensure the reliability and safety of the spacecraft in orbit for a long life,to achieve rendezvous and docking with manned-spacecraft successfully,and to implement both attitude and orbit control during the single body flight and the combination flight.The platform of both hardware and software for GNC subsystem is presented and the fault-tolerant strategy...