Ka频段车载天线跟踪低轨卫星方式影响因素分析  

Analysis of Influencing Factors of Ka-Band Vehicle Antenna Tracking LEO Satellite

作　　者：雷光 张朋强 袁野[1] 徐晶晶 Lei Guang;Zhang Pengqiang;Yuan Ye;Xu Jingjing(Tianjin TT&C Station of XSCC,Tianjin 301900,China)

机构地区：[1]西安卫星测控中心天津测控站,天津蓟州301900

出　　处：《航天控制》2020年第4期63-67,共5页Aerospace Control

基　　金：国家自然科学基金(61871399)。

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.

关 键 词：车载天线 高速率 KA频段 跟踪精度 

分 类 号：V566[航空宇航科学技术]