通过分析ADS-B三种数据链的特性,选出适用于低空空域的数据链模式。ADS-B数据链分为1090ES模式、UAT模式和VDL-4三种,使用国际上通用的三种评价体系评估了ADS-B的三种数据链的特点,根据其特点选择适用于低空通用航空监视的UAT模式,作为低空空域开放之后的主要数据链模式。最后,通过实例验证该数据链在低空空域监视中的应用效果,为我国低空飞行ADS-B数据链提供理论和实践基础。
The data link proper for the low-altitude airspace is chosen after the analysis of the characteristics of three ADS-B data links including 1090ES,UAT and VDL4.The internationally accepted evaluation system is used to assess the characteristics of the three links,and according to the characteristics of the three links,the UAT model for the low-altitude surveillance in the general aviation is selected as the main data link mode after the opening of the low-altitude airspace surveillance.Finally,the experiment shows the good effect of UAT data link in the low-altitude airspace,which can provide theoretical and practice bases for the ADS-B data-links of the flying in the low-altitude airspace in our country.