ADS-B地面站信号覆盖分析及选址应用  

Signal Coverage Analysis and Its Application in Siting of ADS-B Ground Station

作　　者：焦卫东[1] 周波[1] 沈笑云[1] 

机构地区：[1]中国民航大学智能信号和图像处理天津市重点实验室,天津300300

出　　处：《计算机仿真》2014年第4期51-55,77,共6页Computer Simulation

基　　金：国家自然科学基金委员会与中国民用航空局联合资助项目(61079009);中央高校基本科研业务费(ZXH2009B008);中央高校基本科研业务费(3122013SY22)

摘　　要：考虑到广播式自动相关监视技术(ADS-B)在未来民航中的广泛应用,ADS-B地面基站的建设需要考虑地形、障碍物等对信号覆盖的影响。通过设计符合ADS-B规范标准的天线模型,获得了天线空间辐射场的增益数据。根据信号自由空间传输距离、视距传输距离、遮蔽角导致的视距截止距离的计算结果,并结合数字地理高程数据,得出基站的信号覆盖情况。参照ADS-B基站的布站要求,选取北京机场为例进行分析。实验数据表明,地形对ADS-B基站信号的传播影响非常明显,ADS-B地面基站的建立必须考虑地形对信号的影响。方法可用于ADS-B地面基站的选址。Considering the Automatic Dependent Surveillance Broadcast （ ADS B） technology will be used in the aviation widely, the influence of terrain, obstructions, etc, on the signal coverage should be taken into account in the construction of the ADS B ground station. An antenna model which meets the requirements of ADS B was de signed in the paper. Then the antenna gain data of the space radiation were obtained from the model analyses. Ac cording to the calculation results which are about distances of the signal transmission in the free space, sight trans mission and the cutoff sight transmission by the shelter angel, and combining with DEM, the signal coverage of ADS B ground station was analyzed. Finally, by referencing to the siting norms of ADS B ground station, Beijing air port was analyzed as an example. The simulation results show that the terrain and obstructions significantly affect the signal propagation of ADS B base station, and should be considered in the setting of ADS B base station. The pro posed method can be applied in the siting of ADS B base station.

关 键 词：自动相关监视 地面站 天线 信号覆盖 地理高程 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]