摘要
在论述数据中继卫星(以下简称中继卫星)突出优点的基础上,仔细分析了其研制的难点和必须攻克的重大关键技术(包括高速飞行航天器之间的精密捕获跟踪技术、极大电尺寸展开式双频带跟踪天线技术、卫星姿态和天线指向的复合控制技术等).介绍了我国天链一号中继卫星系统的研制历程,该系统具有中国特色,只在国内设置管控站,实现了对我国中低轨用户航天器100%的轨道覆盖.它的成功运行使我国成为继美国之后世界上第2个具有这一系统的国家.天链一号中继卫星系统在神七至神十、天宫一号等飞行任务中的成功实践,说明了天基信息传输的重要作用和巨大效益,具有广阔的应用前景.
On the basis of a description of data relay satellite system＇s out-standing advantages, the difficulties to be overcome and the key technologies to be mastered in the development（including precise acquisition and tracking technology, deployable dual-banded tracking antenna with very large electrical dimension, multiple control technology for satellite attitude control and antenna pointing, etc.） are analyzed in detail. The development course of Tianlian-1 data relay satellite system is introduced. This system, with China＇s characteristics, has 100 percent orbit coverage for MEO and LEO user-spacecrafts by setting the control stations in-country only. Its successful implementation has made China the second country in the world （USA first） in possession of such a system. Tianlian-1 data relay satellite system＇s success in supporting Shenzhou-7 to Shenzhou-10 spaceship, Tiangong-1 missions shows its important role, huge benefits and broad application prospects in space-based information transmission.
出处
《中国科学：技术科学》
EI
CSCD
北大核心
2014年第3期235-242,共8页
Scientia Sinica(Technologica)
关键词
数据中继卫星
星间链路
卫星系统
天基信息传输
卫星应用
data relay satellite, intersatellite link, satellite system, space-based information transmission, satellite application
