遥感卫星地面站天线遮挡预报模型及其应用  

Remote Sensing Satellite Ground Station Antenna Occlusion Forecasting Model and its Application FU Weilong SHI Lu WU Fengxia DENG Shaohua

作　　者：付伟龙 石璐 吴凤霞 邓少华 田妙苗 马广彬 TIAN Miaomiao;MA Guangbin(Aerospace Information Research Institude,Chinese Academy of Sciences,Beijing 100094)

机构地区：[1]中国科学院空天信息创新研究院,北京100094

出　　处：《空间科学学报》2024年第5期957-964,共8页Chinese Journal of Space Science

基　　金：空间科学卫星在轨运行地面支撑系统地面接收分系统项目资助(E02118050B)。

摘　　要：基于遥感卫星地面站业务运行中所遇到的实际问题和运行经验,为降低因地面站天线周边遮挡物对低轨道空间科学卫星、陆地观测卫星等极轨卫星的空间通信任务所产生的影响,以提高航天器和地面的有效通信时长和通信质量为目标,将地面站天线作为基准,对周边环境的遮挡进行建模分析.建立遮挡模型空间几何关系,模型选择推导“天线无遮挡最小仰角”的求解思路,通过模型分析和推导得到了遮挡物的实体遮挡模型公式和大型天线遮挡模型公式.通过模型验证,将模型计算结果同实际遮挡采样信息对比,结果表明遮挡模型和遮挡实际情况基本吻合,模型计算结果准确度可达到99.67%.以天线遮挡预报模型为信息支持,将天线遮挡预报封装成服务,在任务规划阶段调用天线遮挡预报的计算服务和相应任务规划策略,以实现天线遮挡预报模型在地面站运行管理资源调度中的工程应用.经试运行和应用统计结果表明,某地面站的运行管理资源调度优化率达到56.07%.Based on the practical problems encountered in the operational operation of remote sensing satellite ground stations and operational experience,this paper aims to reduce the impact of obstructions around the antennas of ground stations on the space communication missions of polar orbit satellites such as low-orbit space science satellites and land observation satellites.With the goal of improving the effective communication duration and communication quality between the spacecraft and the ground,the ground station antenna is used as a benchmark for modeling and analyzing the obstructions in the surrounding environment.First establish the occlusion model spatial geometry relationship.The model is chosen to derive the solution for the“minimum elevation angle of the antenna without obstruction”.The solid occlusion model equations and large antenna Occlusion model equations are obtained through model analysis and derivation.Through the model validation,it shows that the model results and the actual situation of the occlusion basically match,and the accuracy of the model calculation results can reach 99.67%.Using the antenna occlusion forecast model as information support,the antenna occlusion forecast is encapsulated into a service,and the computation service of the antenna occlusion forecast and the corresponding mission planning strategy are invoked in the mission planning stage,so as to realize the engineering application of the antenna occlusion forecast model in the operation and management resource scheduling of a ground station.The results of trial operation and application statistics show that the optimization rate of operation management resource scheduling of a ground station has reached 56.07%.

关 键 词：空间通信 极轨卫星 遥感卫星地面站 天线 遮挡预报模型 

分 类 号：V443.1[航空宇航科学与技术—飞行器设计] TN927[电子电信—通信与信息系统]