地形分辨率对EGPWS 2A告警的可靠性影响分析  

Analysis of the Influence of Terrain Resolution on the Reliability of EGPWS Mode 2A

作　　者：向奎元 张光明[1] 段中航 XIANG Kuiyuan;ZHANG Guangming;DUAN Zhonghang(Civil Aviation Flight University of China,Guanghan 618307,Sichuan,China)

机构地区：[1]中国民用航空飞行学院,四川广汉618307

出　　处：《民航学报》2024年第2期103-108,共6页Journal of Civil Aviation

基　　金：中央高校基本科研业务费专项资金资助(J2021-014):5G毫米波段新型民航自动避障系统的低功耗天线关键技术研究。

摘　　要：本文研究地形分辨率对近地告警触发的影响,提出了一种采用地形预测告警的仿真技术。以紧急飞行状态下备降飞行航迹为例,通过对地形高程数据的处理,并对增强型近地告警系统告警模式2A进行仿真,实现了地形预测告警触发。引入不同分辨率高程数据,研究了地形分辨率对近地告警触发的影响,优化了近地告警触发决策机制。实验结果表明,较高分辨率地形高程数据能更加精确地预测告警,减少虚警和漏报发生。This paper studies the effect of terrain resolution on near-earth alarm triggering,and proposes a simulation technique using terrain predictive alarm.Taking the emergency flight state backup flight track as an example,it realizes the terrain prediction alarm triggering by processing the terrain elevation data and simulating the alarm mode 2A of the enhanced near-earth alarm system.It introduces different resolutions of elevation data to study the influence of terrain resolution on NEATS triggering,and optimizes the NEATS triggering decision mechanism.The experimental results show that higher resolution terrain elevation data can predict alarms more accurately and reduce false alarms and missed alarms.

关 键 词：近地告警 可控飞行撞地 高程数据 地形分辨率 

分 类 号：X951[环境科学与工程—安全科学]