Abstract
There is lack of available statistical data in the field of quality indicators in ADS-B messages, particularly in Czech airspace. Quality indicators in the ADS-B message define if this message can be used by ATM applications. This article is devoted to the analysis of quality indicators in the ADS-B messages. The data collected in the Czech airspace during six months were analysed. These data were statistically evaluated. The main objective is the statistical evaluation of the data and comparing them with quality requirements in Europe. The article deals with results of the statistics and assessment of the level of quality. Results are satisfactory and similar to the results published by EUROCONTROL and FAA. According to the examined data, 86.42% of them meets the EASA requirements in RAD environment. As ADS-B is not mandatory yet, it is possible to state that these results are satisfying.
Highlights
ADS-B 1090 ES system went through certain developments since its first specification
Various ADS-B applications require for their operation a certain quality and these quality indicators went through evolution
Accuracy is in the ICAO certification version 1 is defined by the parameter NACp, which can be found in the Aircraft
Summary
ADS-B 1090 ES system went through certain developments since its first specification. Various ADS-B applications require for their operation a certain quality and these quality indicators went through evolution. It is quite difficult to distinguish and identify data accuracy because the precision indicators vary for different types of certification. Interpretation of quality indicators varies by ICAO version 0, and 2. The changes in schedule were primary motivated by delays in certification and in availability of required equipment, as well as industrial capacity constraints for equipping aircraft [2]. From the viewpoint of current usage of ADS-B applications there are inevitable to know actual level of penetration particular ICAO ADS-B evolution versions and the level of quality nowadays provided information. Availability of different level of quality position information have indirect impact on implementation of new navigation applications and into its safety aspect as well [3]
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