Prediction and analysis of GBAS integrity monitoring availability at LinZhi airport
Prediction and analysis of GBAS integrity monitoring availability at LinZhi airport
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DOI：
10.1007/s10291-012-0306-4
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发表时间：
2014-01-01
期刊：
影响因子：
4.9
通讯作者：
Escher, Anne-Christine
中科院分区：
文献类型：
--
作者：
Wang, ZhiPeng;Macabiau, Christophe;Escher, Anne-Christine
预测和分析GBAS完整性监测是重要的，特别是在机场的GBAS站，它安装。基于现有的标准文件和已发表的研究，我们提出了一个软件工具的GBAS可用性预测。通过单点、单进近路径和同一进近路径多次重复的仿真，分析了林芝机场GNSS信号完整性监测系统的有效性。结果表明，在进场航线上，GBAS C类进场服务（GAST C）在两个典型单点沿着的长期24 h服务可用度均在99.999%以上，而GBAS D类进场服务（GAST D）在三个典型单点的长期24 h服务可用度均低于99.8%。GAST C和GAST D在24小时内的不可用百分比分别为0.76和2.40%。灵敏度测试结果表明，屏蔽角和纬度对林芝机场GBAS可用性的影响比星座的影响更大。本文的结论对高原机场地面自动化系统的建设具有一定的参考价值。
Prediction and analysis of GBAS integrity monitoring is important, especially at the airports where a GBAS station it to be installed. Based on existing standard documents and published research, we present a software tool for GBAS availability prediction. Simulations have been conducted that include single point, single approach path, and multiple repetitions of a same approach path in order to analyze the availability of GNSS signal integrity monitoring with a GBAS at LinZhi airport. The results show that the long-term 24-h service availability figure at two typical single points along the approach path for GBAS Approach Service Type C (GAST C) is above 99.999 % for each point, and for GBAS Approach Service Type D (GAST D) at three typical single points, it is lower than 99.8 % for each point. The unavailability percentage over a 24-h period is 0.76 and 2.40 % for GAST C and GAST D, respectively. The results of sensitivity tests show that the impact of the mask angle and the latitude on the GBAS availability at LinZhi airport are more important than that of the constellation. Our conclusions could also be of interest for the implementation of GBAS stations at other plateau airports.