期刊文献+
共找到1篇文章
< 1 >
每页显示 20 50 100
Applications of same-beam VLBI in the orbit determination of multi-spacecrafts in a lunar sample-return mission 被引量:13
1
作者 goossens sander KIKUCHI Fuyuhiko +1 位作者 MATSUMOTO Koji HANADA Hideo 《Science China(Physics,Mechanics & Astronomy)》 SCIE EI CAS 2010年第6期1153-1161,共9页
Same-beam VLBI means that two spacecrafts with small separation angles that transmit multi-frequency signals specially designed are observed simultaneously through the main beam of receiving antennas. In same-beam VLB... Same-beam VLBI means that two spacecrafts with small separation angles that transmit multi-frequency signals specially designed are observed simultaneously through the main beam of receiving antennas. In same-beam VLBI,the differential phase delay between the two spacecrafts and the two receiving antennas can be obtained within a small error of several picoseconds. As a successful application,the short-arc orbit determination of several hours for Rstar and Vstar,which are two small sub-spacecrafts of SELENE,has been much improved by using the same-beam VLBI data together with the Doppler and range data. The long-arc orbit determination of several days has also been accomplished within an error of about 10 m with the same-beam VLBI data incorporated. These results show the value of the same-beam VLBI for the orbit determination of multi-spacecrafts. This paper introduces the same-beam VLBI and Doppler observations of SELENE and the orbit determination results. In addition,this paper introduces how to use the same-beam VLBI for a lunar sample-return mission,which usually consists of an orbiter,a lander and a return unit. The paper also offers the design for the onboard radio sources in the lunar sample-return mission,and introduces applications of S-band multi-frequency same-beam VLBI in lunar gravity exploration and applications during all stages in the position/orbit determinations such as orbiting,landing,sampling,ascending,and docking. 展开更多
关键词 same-beam VLBI differential phase delay sample-return orbit determination LUNAR gravity field
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部