Introduction to the TT&C Scheme for Chang’e⁃5 Mission  

嫦娥五号任务测控系统方案设计

作　　者：HUANG Lei LI Haitao DONG Guangliang CHEN Shaowu FAN Min 黄磊;李海涛;董光亮;陈少伍;樊敏(北京跟踪与通信技术研究所,北京100094)

机构地区：[1]Beijing Institute of Tracking and Telecommunications Technology,Beijing 100094,P.R.China

出　　处：《Transactions of Nanjing University of Aeronautics and Astronautics》2022年第5期530-540,共11页南京航空航天大学学报（英文版）

摘　　要：Chang’e-5 mission is China’s first lunar sample return mission.It contains several new flight phases compared with the previous lunar missions,such as the lunar take-off and orbit insertion phase,the rendezvous and docking phase,etc.Chang’e-5 mission is extremely complicated and full of new challenges.This paper sorts out the characteristics and the difficulties in telemetry,tracking,and command(TT&C)of Chang’e-5 mission.The main technical contribution is a reliable general design of the TT&C system,including the application of X-band TT&C in launch and early orbit phase(LEOP),multiple targets simultaneous TT&C in X-band,lunar surface benchmark calibration,high-precision and rapid orbit trajectory determination for the lunar surface take-off,remote guidance rendezvous and docking,the determination of the initial navigational value for the separation point of the Chang’e-5 orbiter and returner,and the design of the reentry measurement chain.Based on this scheme,a global deep space TT&C network and interplanetary reentry measurement chain have been established for China,and near-continuous TT&C support for China’s first extraterrestrial object sampling and return mission has been realized,ensuring reliable tracking,accurate measurement and accurate control.The global deep space network can provide TT&C support comparable to that of National Aeronautics and Space Administration(NASA)and European Space Agency(ESA)for subsequent lunar and deep space exploration missions.The techniques of rapid trajectory determination of lunar take-off and orbit entry,as well as high precision and remote guidance of lunar orbit rendezvous and docking can lay a technological foundation for the future manned lunar exploration missions and planetary sampling and return missions.嫦娥五号任务是中国首次月球采样返回任务。与之前实施的探月任务相比,此次任务包括了多个全新飞行阶段,如月面上升入轨段、交会对接段等,这些均让任务变得极其复杂并充满新挑战。本文梳理了嫦娥五号任务在测控方面的特点和难点,开展了可靠的测控系统总体方案设计,主要技术点包括发射及早期轨道段X频段测控、多目标X频段同时测控、月面基准标定及起飞入轨段轨迹快速测定、交会对接段高精度远程导引、轨道器与返回器分离点导航初值确定、再入返回测量链设计等。基于此设计方案,建立了中国自己的全球布站的深空测控网和行星际再入测量链,实现了中国首个地外天体采样返回任务的近连续测控保障,实现了可靠跟踪、精确测量和精确控制。全球布局的深空测控网可为后续月球与深空探测任务提供比肩欧美的测控支持。月面起飞入轨快速轨迹测定与环月轨道交会对接高精度远程导引技术可为载人月球探测任务、行星采样返回任务奠定技术基础。

关 键 词：Chang’e-5 telemetry tracking and command(TT&C) the third phase of China lunar exploration program lunar exploration system design 

分 类 号：V556[航空宇航科学与技术—人机与环境工程]