我国火星软着陆探测技术发展成就OA北大核心CSTPCD

The main characteristics and difficulties of the Mars soft-landing exploration mission are analyzed in this paper.Based on the outline plan of China's first Mars soft-landing probe,it in-troduces the overall design of the probe and the development and innovation of 9 key technology(guidance,navigation and control,lightweight thermal protection,high temperature and large load bearing structure,large supersonic low dynamic pressure parachute,medium chamber pres-sure variable thrust bi-component space propulsion,Mars environment simulation and verifica-tion,etc.),then the main achievements are summarized.