星基广播式自动相关监视系统监视数据空中位置信息质量分析

摘要

为弥补广播式自动相关监视系统(ADS-B)地面站建设成本高、技术复杂以及沙漠海洋极地等地区难以搭建的不足,可在卫星上搭建ADS-B接收机,实现对全球空中交通的监测与管制.解析星基ADS-B报文、整理报文信息、提取导航完整度类别信息(NIC)、分析空中位置数据的完好性和精度信息.选取符合完好性要求的航迹点数据,统计与航路中心线的实际位置误差,运用统计学方法对航迹误差分布进行分析.结果表明,实际误差距离符合正态分布规律,95.5%的概率下空中位置的实际误差在(101.694,211.761)m,为后续的卫星基系统监视性能的可用性分析打下了良好基础.%Automatic dependent surveillance-broadcast ( ADS-B) ground station has high cost , complexity tech-nique.It is hard to build in deserts , polar, seas, and other regions .In order to make up for these deficiencies , ADS-B receiver can be built on satellite to monitor and control the global air traffic .For this study , a dataset of space-based ADS-B messages was analyzed and arranged .The navigation integrity category ( NIC) has been extrac-ted to analysis the integrity and accuracy of air position data .According to the requirements of track data integrity , the actual location error between the track point and the route centerline was calculated , and used statistical meth-ods to analyze the distribution of track error .The result shows that the deviated distance obeys the normal distribu-tion.The actual error of air position in the probability of 95.5%is (101.694, 211.761) m.The condition for the further research on availability analysis of space-based ADS-B surveillance performance was created .