南极长城站建立深空跟踪站对月球车地-月通信条件的改善

Improvement of Communication Condition from Lunar Rover to Deep Space Tracking Station in Antarctic Great-Wall Station

假定在地球南极中国长城科学考察站建立跟踪站,模拟计算月球南极月球车和该跟踪站之间通信的可达性,并和国内跟踪站与南极月球车之间的通信条件进行比较。计算结果表明:①在长城站所建立的跟踪站与月球南极的月球车通信受地形的影响比与我国境内的跟踪站的影响要小;②中国南极长城站和我国境内的跟踪站经度相差180°,综合长城站和我国境内的跟踪站,可以减少由于地球自转而造成的测站背离月球的影响,使观测时段更长。南极长城站建立深空探测跟踪站的通信可达性模拟计算可为我国深空探测网建站的规划及可行性研究提供参考。

If a deep space tracking station is founded in Earth＇s Antarctic area,communication conditions will be greatly improved attributing to its broader vision.This paper assumes the deep space station is established in Chinese Antarctica Great-Wall station,and simulates the communication accessibility between the lunar rover and the Great-Wall tracking station.Through the comparison with the domestic tracking station＇s communication condition,the results show that：① The influence of communication condition by topography between the lunar rover in lunar south pole and Great-Wall tracking station is less than that between the lunar rover in lunar south pole and the domestic tracking stations.② The longitude is about 180° from the Chinese Antarctic Great-Wall station to the domestic tracking station.Integrated with all of the tracking stations,including Chinese Antarctic Great-Wall station and domestic tracking stations,the impact of the stations away from the Moon due to the Earth＇s rotation can be reduced and the tracking time can be lengthened.The simulation and analysis of communication accessibility for choosing Antarctic Great-Wall station as deep space tracking station,can provide a suggestion for the feasibility of construction of the next deep space tracking stations.