“天问一号”火星探测器关键任务系统设计

“天问一号”任务是我国行星探测的首次任务，在国际上首次通过一次任务实现了火星“环绕、着陆、巡视”的三步跨越.“天问一号”探测器由中国空间技术研究院负责抓总研制，包括环绕器和着陆巡视器两个组成部分.对“天问一号”探测器的任务特点和概貌进行了介绍，对包括飞行过程、远距离深空通信、火星捕获过程、火星进入下降及着陆过程、火星车解锁驶离和火面工作等关键环节的设计方案进行了描述，对“天问一号”所取得的技术成果与创新进行了总结.

Key Mission System Design of Tianwen-1 Mars Probe

The Tianwen 1 Mars probe, designed to complete orbiting, landing and roving in one mission, is the first planetary exploration mission of China. The Tianwen 1 probe is composed of an orbiter，a lander and a rover. The China Academy of Space Technology takes the overall development of the Tianwen 1 probe. This report introduces the mission characteristics and overview, specifically describes the design schemes of key parts and the results of flight, deep space communications, Mars capture, entry descent and landing(EDL), rover unlocking and driving away from the lander and rover exploration phases. This report also summarizes the technical achievements and innovations of the Tianwen 1 probe.