The reentry phase is the vital phase when RLV fulfill its flight task.The guidance,navigation and control(GNC) system,the brain system,is the one of the key systems of RLV.

• 再入飞行是RLV飞行任务的重要阶段,而制导、导航与控制(GNC)系统则是RLV的核心系统之一,是RLV再入飞行的“脑系统”。