基于通航飞机平台的北斗短报文通信性能评估

Communication performance evaluation of BeiDou′s short message based on general aviation aircraft platform

为更好地评估测试北斗短报文的通信性能,服务航空应用,在研究北斗短报文通信性能评估方法的基础上,利用通用航空飞机搭载北斗终端进行数据采集,并对北斗短报文通信性能进行飞行测试评估。通过飞行试验采集本场和转场飞行时北斗终端的通道波束和短报文等信息,评估在不同飞行高度、不同搭载位置等情况下北斗短报文的通信性能。飞行测试评估结果表明:北斗短报文通信成功率受搭载环境影响,在北斗终端天线与北斗通信卫星可视情况良好的情况下,通信成功率较高,验证了北斗短报文通信功能适用于通用航空监视应用等领域。

In order to evaluate and test the communication performance of BeiDou′s short messages better,such technology can enhance the service towards the aviation applications.Based on the study of the BeiDou′s short message communication performance evaluation method,the general aviation aircraft equipped with the BeiDou′s terminal which was used for data collection,where the BeiDou′s short message communication performance was evaluated by flight test.The flight tests at Faku Shenyang general aviation airport was carried out,to collect information such as channel beams and short messages of BeiDou′s terminal during local and transit flights,and evaluate the communication performance of Beidou′s short message under different flight altitudes,different loading positions and different geographic locations.The flight test evaluation results show that the success rate of the BeiDou′s short message communication is affected by the environment.When the BeiDou′s terminal antenna and the BeiDou′s communication satellite are in good visibility,the communication success rate is high.It also shows the BeiDou′s short message communication function is suitable for general aviation surveillance applications and other fields.