基于CE-3的无线电测月研究  

Research on Lunar Radio Measurement on Chang'e-3

作　　者：唐歌实[1,2] 曹建峰[1,2] 韩松涛[1,2] 胡松杰[1,2] 任天鹏[1,2] 陈略[1,2] 孙靖[1,2] 王美[1,2] 李羿霏 李黎[1,2] 

机构地区：[1]航天飞行动力学技术重点实验室,北京100094 [2]北京航天飞行控制中心,北京100094

出　　处：《深空探测学报》2014年第3期236-240,共5页Journal Of Deep Space Exploration

基　　金：国家自然科学基金(61401014)

摘　　要：CE-3号探测器于2013年12月14日成功着陆于月表虹湾区,在预期1年的生存期内,着陆器能够相干转发下行X波段信号。基于这些信号,地面测控天线以及VLBI(very long baseline interferometry,甚长基线干涉测量)天线能够进行距离、速度、载波相位、VLBI时延以及时延率的测量。传统的激光测月技术只能提供距离测量信息,无线电测月技术能够同时提供更丰富的观测量类型,有可能获取优于激光测月技术的科学成果。为了分析LRM(lunar radio measurement,无线电测月)可能的贡献,MEKAS(Moon Earth kinematical analysis software)软件用于支撑无线电测月的数据分析处理,其能够模拟全部观测量类型,具备协方差分析以及CE-3着陆器定位、测站坐标解算等功能。模拟分析表明无线电测月技术在地月球科学方面具有广阔的应用前景。After the successful launch on December 2,2013,Chang'e-3performed soft landing on lunar surface on December 14.Which is designed to stand in place for more than 1year,and it can transmit X-band signal when the transponder is switched on.With their signals,ranging,Doppler,carrier phase,VLBI delay and delay rate can be acquired from ground TT&C antennas and VLBI antennas.These techniques can be called Lunar Radio Measurement(LRM)collectively.By LRM technique,more rich observations can be acquired nearly at the same time,so it could be more effective in contributing to space geodesy than LLR(Lunar Laser Ranging)which only provides ranging observation.To analyze the LRM technique, MEKAS(Moon Earth Kinematical Analysis Software)is developed,which can simulate all kinds of observations mentioned above,carry out covariance analysis and determine the parameters including CE-3position on the lunar surface,ground site coordinates UT1,EOP and love number.Simulation results show that LRM technique has wide prospects in earth and lunar science.

关 键 词：嫦娥3号 玉兔号月球车 X波段转发器 无线电测月 

分 类 号：V556.6[航空宇航科学与技术—人机与环境工程]