摘要
针对中继卫星星间Ka频段和S频段单址链路(KSA/SSA)天线和卫星运行轨道的特点,分析给出了KSA/SSA星间天线的跟踪模式和使用准则。详细分析和比较了方形、六边形、同心圆和阿基米德螺旋线扫描等几种天线扫描捕获方式,给出了适合星间天线使用的天线扫描捕获方式。并对影响链路捕获时间、捕获概率的关键参数给出了选择原则、计算公式和仿真结果。
Considering the characteristics of KSA/SSA antenna and orbits of data relay satellite, the tracking mode and adoption criteria fit to KSA/SSA ISA are analyzed and presented. This paper compares and investigates in detail several antenna scan modes, such as rectangular, hexagonal, circular, and spiral scan mode. The feasible ISA scan and acquisi- tion mode is then presented. The simulation results, calculation formulae and criteria of the parameters which have effects on link acquisition time and acquisition probability are also presented.
出处
《宇航学报》
EI
CAS
CSCD
北大核心
2009年第5期1947-1952,共6页
Journal of Astronautics
关键词
星间链路
跟踪
捕获
中继卫星
Inter-satellite link
Acquisition
Tracking
TDRSS
