中继卫星终端相控阵天线自跟踪算法设计与性能分析  

Design and Performance Analysis of Phased Array Antennas Automatic Tracking Algorithm Used in Relay Satellite System Terminal

作　　者：蒋文丰[1] 安建 叶琪玮 JIANG Wenfeng;AN Jian;YE Qiwei(Southwest China Institute of Electronic Technology,Chengdu 610036,China;Unit 61096 of PLA,Beijing 102308,China)

机构地区：[1]中国西南电子技术研究所,成都610036 [2]中国人民解放军61096部队,北京102308

出　　处：《电讯技术》2023年第3期363-367,共5页Telecommunication Engineering

摘　　要：针对飞行器与中继卫星之间建立全球实时通信数据链的需求,开展了飞行器二维有源相控阵天线自跟踪技术研究。结合载体坐标系,对自跟踪算法原理进行了分析,给出了计算公式,并完成了二维相控阵天线跟踪系统设计与实现。仿真和系统测试表明,跟踪算法静态角跟踪误差≤0.25°,角速度≤25°/s时,跟踪算法能正常工作,且在阵元失效率≤20%时性能保持不变。According to the demand of building the global communication link between the aerocraft and the relay satellite,the automatic tracking technology for two-dimensional phased array is researched.By using the vehicle coordinate,the principle of the automatic tracking algorithm is analyzed,the calculation formula is given,and the design and realization of the two-dimensional phased array tracking system is finished.Simulation and system testing data shows that,the static state angle tracking error of the automatic tracking system is≤0.25°,and the automatic tracking system can keep working when the angular velocity is≤25°/s and even 20%arrays are invalid.

关 键 词：中继卫星终端 相控阵天线 自跟踪算法 

分 类 号：TN820[电子电信—信息与通信工程]