Prediction and analysis of GBAS integrity monitoring availability at LinZhi airport

Abstract : 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.
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Soumis le : mardi 25 novembre 2014 - 16:59:26
Dernière modification le : jeudi 27 novembre 2014 - 01:02:16
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Zhipeng Wang, Christophe Macabiau, Jun Zhang, Anne-Christine Escher. Prediction and analysis of GBAS integrity monitoring availability at LinZhi airport. GPS Solutions, Springer Verlag, 2014, 18 (1), pp 27-40. 〈10.1007/s10291-012-0306-4〉. 〈hal-00937606〉

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