“北斗区域导航系统”非精密进近导航性能分析  

Performance Analysis for BeiDou Regional Navigation Satellite System of NPA

作　　者：刘瑞华[1] 赵庆田[1] 吕小平[1] 邓明智[1] 

机构地区：[1]中国民航大学电子信息工程学院,天津300300

出　　处：《中国空间科学技术》2015年第4期53-59,83,共8页Chinese Space Science and Technology

基　　金：民航安全能力建设项目"北斗机载设备技术标准规定与应用研究"(AADSA0007);中央高校基本科研业务费中国民航大学专项"基于北斗的通用航空指挥监控系统"(20001006)资助项目

摘　　要：根据"北斗区域导航系统"星座布局结构特点,结合民航非精密进近的应用,展开北斗导航系统服务于民航前瞻性研究。针对卫星可见性、精度衰减因子(DOP)值以及垂直保护水平(HPL)值三项性能指标,仿真分析了其在亚太地区的统计分布特性,并对中国地区内4个指定点进行了指标的对比分析。仿真结果表明:在亚太区域内,北斗区域导航系统能够向民航用户提供理想的卫星可见数、DOP值和HPL值,满足民航非精密进近对三项指标的需求。A prospective research for using the BeiDou Regional Navigation Satellite System to civil aviation application was made based on the characteristics of ＂5GEO＋5IGSO＋4MEO＂constellation and requirements of non-precise approach（NPA）in civil aviation.For three indexes the visibility of space vehicle,dilution of precision（DOP）values and horizontal protection level（HPL） value,the statistical characteristics in Asia-Pacific area and the comparison of three indexes for 4 designated user locations were presented by simulation and analysis.The results show that the BeiDou Regional Navigation Satellite System has the ability to provide the ideal number of satellite in sight,better values of DOP and HPL,and can meet the current needs of the above three indexes in NPA flight phase.

关 键 词：星座性能:卫星可见性 精度衰减因子值 接收机自主完好性监测 北斗区域卫星导航系统 

分 类 号：V323.11[航空宇航科学与技术—人机与环境工程]