摘要
2014年11月1日,月地高速再入返回飞行器准确着陆在预定着陆区,标志着探月工程三期月地高速再入返回任务取得了圆满成功.其中飞行器服务舱的制导,导航与控制系统以高精度的再入角和准确的返回再入速度将返回器送入返回走廊,是整个飞行任务的关键环节.本文介绍了为实现以11 km/s速度再入返回地球,解决对地球再入角和返回速度的准确度要求高的难题,飞行器服务舱的制导,导航与控制系统所采用的轮控姿态管理,喷气管理和高精度加速度计闭环轨控的组合技术.在轨实施取得了轨道控制精度小于0.009 m/s,再入角控制精度小于0.024°的控制结果,达到了再入返回轨道控制的高水平.
The circumlunar return and reentry spacecraft has landed at the reserved landing site on Nov. 1, 2014, which represented the great success of the circumlunar return and reentry spacecraft of 3rd phase of China lunar exploration program. As a key step of the whole space mission, the guidance, navigation and control system of the spacecraft＇s service module sent the reentry capsule into the back corridor with the high-accuracy reentry angle and reentry velocity. This article introduces the wheel control attitude management technology, jet management technology and accelerometer closed-loop orbit control technology used to realize return and reentry to the earth within 11 km/s and solve the difficult problem of the accuracy requirement for the reentry angle and reentry velocity. The combination of these techniques was implemented on orbit, and obtained the orbit control accuracy higher than 0.009 m/s and the reentry angle control accuracy higher than 0.024°.
出处
《中国科学：技术科学》
EI
CSCD
北大核心
2015年第3期276-283,共8页
Scientia Sinica(Technologica)
基金
国家中长期科技发展规划重大专项资助项目
关键词
探月三期
飞行器
月地高速再入返回
轨道控制
the 3rd phase of China lunar exploration program, spacecraft, high-speed circumlunar return and reentry, orbit control
作者简介
E-mail：daijf@bice．org．cn
