行星探测器GNC系统自主安全模式设计

GNC System Autonomous Safe Mode Design for Interplanetary Spacecraft

针对行星探测器GNC系统自主生存能力要求高的特点,设计具有黄极捕获功能的惯性安全模式和无惯性系定向支持的应急安全模式.描述安全模式下姿态确定与控制任务,提出相应的方案.通过对安全模式的任务分析可知,该模式下探测器可以自主进行姿态机动,保证能源供给和星地通信链路建立.

Two safe modes including inertial reference frame safe mode with ecliptic pole pointing and emergency safe mode without inertial reference frame orientation are designed for the requirement of autonomous survival capability of interplanetary spacecraft. Tasks of attitude determination and control in the safe mode are described in this paper, and then the corresponding schemes are proposed. It is shown from the task analysis for safe modes that the spacecraft autonomous attitude maneuver will guarantee power supply to be provided and communication link established.