风云四号接收天线新技术的研究及应用  

Research and Application of New Technology for FY-4 Receiving Antenna

作　　者：李庆硕 裘奕 冯小虎 LI Qingshuo;QIU Yi;FENG Xiaohu(National Satellite Meteorological Center/National Center for Space Weather,Beijing 100081,China;Innovation Center for Fengyun Meteorological Satellite(FYSIC),Beijing 100081,China)

机构地区：[1]国家卫星气象中心/国家空间天气监测预警中心,北京100081 [2]许健民气象卫星创新中心,北京100081

出　　处：《数字通信世界》2023年第8期1-4,共4页Digital Communication World

摘　　要：风云四号气象卫星是采用三轴稳定的大型遥感平台、装载多台观测仪器的第二代静止气象卫星,其地面接收天线主要任务就是要保证准确捕获卫星,高可靠、高精度地跟踪卫星,为系统上下行信道提供高品质的射频通道。风云四号B星在风云四号A星的基础上增加Ka频段数传。风云四号15米Ka/X/S频段天线是其地面应用系统获取工程数据和测控系统的重要组成部分,用于风云四号B星的Ka频段信号的接收、X频段信号的发射和接收、S频段信号的发射和接收。Ka频段的频率高、波长短、波束窄的特点对地面接收天线带来了更高的要求,为此,文章主要分析研究风云四号地面接收天线新技术及应用。FY-4 meteorological satellite is the second generation stationary meteorological satellite with a large remote sensing platform with three-axis stability and multiple observation instruments.The main task of FY-4 ground receiving antenna is to ensure accurate acquisition,high reliability and high precision tracking of satellites,and provide high-quality RF channels for the uplink and downlink channels of the system.FY-4B adds Ka-band data transmission on the basis of FY-4A.The 15-meter Ka/X/S band antenna of FY-4 is an important part of the engineering data acquisition and measurement and control system of FY-4 satellite ground application system.It is used for receiving the Ka-band signal of FY-4B satellite,transmitting and receiving the X-band signal,and transmitting and receiving the S-band signal.The characteristics of Ka-band such as high frequency,short wavelength and narrow beam have brought higher requirements to the ground receiving antenna.In order to meet the operational requirements of the business,this article mainly analyzes and studies the new technology and application of FY-4 ground receiving antenna.

关 键 词：风云四号 接收天线 步进跟踪 单脉冲跟踪 智能跟踪 

分 类 号：TN828.5[电子电信—信息与通信工程]