多因素影响下的ADS-B地面站覆盖及三维显示

Influence of meteorological factors on the signal coverage of ADS-B station

摘要:

针对多因素影响下的ADS-B地面站覆盖范围进行了研究。在以往只考虑地形遮蔽条件的信号覆盖截止算法基础上,加入对电磁信号的传播有显著衰减影响的气象因素,如大气环境衰减,雨衰减和沙尘衰减,得到更贴近实际情况的覆盖效果。最后以我国新疆地区一组实际应用的ADS-B监视系统为例,计算在当地气象条件下的地面站覆盖效果并进行仿真,并在UGIS(三维地理信息系统)中进行三维可视化分析。仿真结果表明,多种影响因素结合得到的覆盖范围比单一的地形条件覆盖范围更加精确。

Abstract:

This research is about the multiple factors’ influence on the coverage of ADS-B ground stations. Base on the previous research which consider only terrain masking effect on the signal coverage algrithm, the impact of meteorological factors are also considered, such as atmospheric attenuation, rain attenuation and dust attenuation, to get the results closer to the actual condition. Finally, base on the information from a group of real ADS-B surveillance system in Xinjiang to simulate the signal coverage under local meteorological condition, and the calculation data is processed by UGIS software to get 3D visualization analysis. The simulation results indicate the new algrithm combined with multiple factors is more accurate than consider the single terrain condition in coverage algorithm.