I. V. Ostroumov, N. S. Kuzmenko


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.


Navigation; angle of arrival method; positioning; VOR / VOR; accuracy; Ukraine; airspace; internal angle


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