摘要
为实现天基信息的传输,首先要完成中继卫星天线与用户飞行器天线之间的捕获与跟踪。针对箭载相控阵天线对中继卫星的捕获,采用Ka频段相控阵天线扫描捕获策略,分析了天线扫描的不确定区域,确定了天线阵元数及EIRP值,给出了捕获时间的仿真结果,为工程应用提供参考。
In order to transmit the space-based signal,the capture and track between the tracking and data relay satellite（TDRS） antenna and the user＇s aerocraft antenna should be completed firstly.In this paper,the uncertain area of the antenna scan is analyzed,adopting antenna-scan capture scheme for capturing the antenna on TDRS by the phased-array antenna on launch vehicle.The values of the antenna array and EIRP are conformed and the capture time is given by computer simulation.
出处
《导弹与航天运载技术》
北大核心
2011年第3期51-54,共4页
Missiles and Space Vehicles
关键词
运载火箭
Ka频段天线
中继卫星
捕获
Launch vehicle
Ka-band antenna
Tracking and data relay satellite
Capture
