摘要
500 m口径反射面射电望远镜(FAST)是目前世界口径最大、最灵敏的射电天文望远镜。为了分析FAST对深空探测任务的数据传输支持能力,利用数据传输链路预算分析方法,在规定特定工程余量的条件下,详细计算了FAST应用在内行星、外行星及柯伊伯带(Kuiper belt)天体探测任务中的数据传输速率。计算结果表明,FAST等效成口径300 m的地面接收天线,能使目前的深空通信数据下行传输速率提高70~400倍,未来其将会强有力地支持我国的火星、木星等深空探测任务。
Five-hundred-meter Aperture Spherical Telescope （FAST） is the largest and most sensitive ra-dio astronomical telescope in the world. In order to analyze the data transmission support ability of FASTfor deep space exploration mission,the data transmission link budget analysis method is adopted. In theprovision of specific engineering allowance,the downlink transmission rate of FAST for inner planet,outerplanet and Kuiper belt objects exploration mission is calculated. The result shows that,the telescope whichis equivalent to a 300-metre aperture receiving antenna will increase the deep space downlink data trans-mission rate by 70 - 400 times. In the future it will strongly support China＇s Mars and Jupiter explorationmission.
出处
《电讯技术》
北大核心
2017年第12期1383-1387,共5页
Telecommunication Engineering
