An overview of the mission and technical characteristics of Change'4 Lunar Probe

作     者：YE PeiJian SUN ZeZhou ZHANG He LI Fei 

作者机构：China Academy of Space Technology Beijing 100094 China Institute of Spacecraft System Engineering Beijing 100094 China 

出 版 物：《Science China(Technological Sciences)》 (中国科学（技术科学英文版）)

年 卷 期：2017年第60卷第5期

页      面：658-667页

核心收录：

学科分类：08[工学] 081601[工学-大地测量学与测量工程] 082503[工学-航空宇航制造工程] 0816[工学-测绘科学与技术] 0825[工学-航空宇航科学与技术] 

主　　题：Change'4 farside relay communication libration point South-Pole Aitken Basin RTG 

摘      要：Change＇4 Lunar Probe will softly land on the farside of the Moon for the first time of all mankind and carry out in-situ and rovering exploration. In this paper, the scientific significance and engineering difficulties of Change＇4 are introduced and the probe＇s general design, including the aspects of landing site selection, relay communication, trajectory design of relay satellite is explained. Besides, four key technologies, namely safe landing strategy on complex terrain, orbit design and control of libration point 2, relay communication on L2, radioisotope thermoelectric generator （RTG） and electric-thermal utilization, as well as how to realize them are also discussed. Finally the prospect of the prominent technological breakthrough of Change＇4 is described.