AN ACCURACY OF LOCATION LINE MAINTAINING BY ANGLES AT LIMITED AIRSPACE VOLUME
DOI:
https://doi.org/10.18372/1990-5548.62.14387Keywords:
Navigation, angle of arrival method, positioning, VOR / VOR, accuracy, Ukraine, airspace, internal angleAbstract
The accuracy of maintaining navigational characteristics is the most important factor in the development of avionics of a civil aircraft. The on-board computing system of aircraft uses a variety of different algorithms for maintaining a given trajectory and determining the exact location in the airspace. Nowadays many aircraft are equipped with system that uses measurements of angles or distances to specific ground-based navigational aids for positioning as a backup or alternative to the global navigation satellite. Represented mathematical dependence makes possible to estimate the accuracy of maintaining the position line for angular-based approach during navigation by optimal pair of VOR / VOR through internal angles. As initial data, information from VOR on-board receivers are used, as well as information about the location of ground-based navigation aids. Statistical analysis is used as a main method of data study. The obtained mathematical dependencies can be used in the algorithms of on-board navigation systems to assess the availability and accuracy of VOR / VOR navigation in real-time. Based on the results of computer modeling, the maximum accuracy of navigation was estimated in the case of using the optimal pair of navigational aids for the airspace of Ukraine.
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