摘要
针对Ka频段车载天线捕获、跟踪和接收低轨卫星高速数传数据中存在的捕获慢、跟踪和接收数据不稳定的问题,研究了其产生机理,并提出修正方法。对Ka频段卫星校相流程、校相值可用时长、以及与温度的关系进行了分析,提出了优化校相策略并进行应用。应用结果表明,捕获策略和跟踪方案能够实现快速捕获、稳定跟踪,并能保证数据可靠传输。
Aiming at the situation of instability of tracking and receiving high-speed data of LEO satellite in Ka-band vehicle antenna acquisition,the generation principle is attempted to analyze and a method is implemented for correction. The strategy of optimizing phase value is proposed and applied to the Ka-band satellite phase calibration process,the available time of calibration value and the relationship between temperature and calibration value. The application results show that the acquisition strategy and tracking scheme can achieve fast acquisition,stable tracking and reliable transmission of data.
作者
雷光
张朋强
袁野
徐晶晶
Lei Guang;Zhang Pengqiang;Yuan Ye;Xu Jingjing(Tianjin TT&C Station of XSCC,Tianjin 301900,China)
出处
《航天控制》
CSCD
北大核心
2020年第4期63-67,共5页
Aerospace Control
基金
国家自然科学基金(61871399)。
关键词
车载天线
高速率
KA频段
跟踪精度
Vehicle antenna
High-speed
Ka-band
Tracking accuracy
