机载卫星通信天线引导概率分析  

Analysis of Guidance Probability of an Airborne Satellite Communication Antenna

作　　者：王双平[1] 

机构地区：[1]中国电子科技集团公司第39研究所

出　　处：《飞行器测控学报》2012年第4期62-65,共4页Journal of Spacecraft TT&C Technology

摘　　要：针对某机载Ka频段卫星通信天线的使用环境,论述其天线角跟踪系统在捷联航姿设备引导下,天线主波束指向卫星目标位置的概率,分析影响天线角跟踪系统引导概率的主要因素,通过消减系统中大误差源保证了天线引导概率,通过扩展主波束指向空域提高了目标落入概率。计算数据和试验验证表明,给出的分析方法可行,设计策略有效。Based on the operational environment of a Ka-band airborne satellite communication antenna, this paper discusses the guidance probability of antenna main-beam pointing to the target position of satellite under the guidance of strapdown attitude and heading reference system. The main factors affecting the guidance probability of antenna angle tracking system is analyzed. The guidance probability of antenna is ensured by elimination of the major error sources in the system and the target capture probability is increased by extending the main beam pointing region. Computation results and experiment verification show that the method is feasible and the design approach is valid.

关 键 词：引导概率 天线主波束 捷联航姿 角跟踪系统 机载卫星通信天线 KA频段 

分 类 号：TN927.2[电子电信—通信与信息系统]