风云三号气象卫星12米天线无塔校相技术的实现  

Realization of phase calibration technology without tower for 12 meterreceiving antenna of FY-3 meteorological satellite

作　　者：任立清 张伟航 周立平 REN Liqing;ZHANG Weihang;ZHOU Liping(Urumqi Meteorological Satellite GroundStation,Urumqi830011.China)

机构地区：[1]乌鲁木齐气象卫星地面站,乌鲁木齐830011

出　　处：《计算机应用文摘》2022年第11期74-76,共3页Chinese Journal of Computer Application

摘　　要：风云三号气象卫星12米天线的X频段采用多模单脉冲,L频段采用多喇叭单脉冲自动跟踪机制,须定期进行相位校正。针对天线校准相位,须对塔的局限性进行无塔校相方法研究及实现。文章通过采用12米天线快速无塔校相方法,有效提高了天线跟踪精度和卫星资料接收设备自动化标校水平。通过分析产生相位差的原因,归纳了影响相位值的各种因素;从跟踪原理出发,介绍了风云三号卫星12米天线无塔校相技术在卫星资料收集工作中的应用。The 12m tracking antenna of FY-3 meteorological satellite adopts multi-mode monopulse inX-band and multi horn monopulse automatic tracking system in L-band.The antenna needs periodicphase correction.Aimingat the limitation of tower in antenna phase calibration,the tower free phasecalibration method is studied and realized.By developing a fast tower free phase correction methodfor12m antenna,this paper effectively improves the antenna tracking accuracy and theautomaticcalibration level of satellite data receiving equipment.By analyzing the causes of phase difference,various factors affecting the phase value are summarized.Starting from the tracking principle,theapplication of tower free phase correction technology of12 meter receiving antenna of FY-3 satelliteinsatellite data work is introduced.

关 键 词：自动跟踪 跟踪精度 交叉耦合 定向灵敏度 无塔校相 

分 类 号：V474[航空宇航科学与技术—飞行器设计]