A.N. Shevtsov 1

1 South-West State University (Kursk, Russia)

1 aleksey_shevtsov95@mail.ru

Formulation of the problem. The activities of the structural divisions of the International Civil Aviation Organization are aimed at the development of effective means and methods that ensure the safety of aircraft flights in civil aviation. A rather significant factor in this situation is the creation, design and implementation on the ship of systems and means that allow to ensure high-quality information exchange of the aircraft (AC) with the control room directly in flight mode.

The information transmitted from the aircraft includes various information about the technically sound condition of its main components, namely: the operation of the turbines, the operation of the engines, flight parameters such as speed, roll, pitch, yaw, pressure overboard and inside the aircraft (during flight), and also a stock of all fluids, including fuel. It should be noted that at present information from the aircraft is transmitted through ground communication towers, which cover only a limited part of the Earth's surface. To eliminate blind spots in which there is no transmission of flight information (ADS-B) of full coverage of the Earth's territory, an effective method of transmitting (relaying) information from the aircraft to the Earth is required. One of the options for transmitting information from the aircraft to the Earth can be satellite constellations.

Purpose of the article. The purpose of the scientific article is to develop a methodology for assessing the energy potential of communication channels "aircraft - satellite" and "satellite - Earth", which makes it possible to correlate calculations and conduct expert assessments according to uniform rules.

Results. The article proposes a methodology that allows taking into account the energy potential of the above radio lines in the forward and backward directions, as well as conducting an energy analysis of communication channels. Conducted in accordance with the proposed methodology, the calculation of the signal-to-noise ratio at the input of the earth station demodulator showed that it turned out to be equal to 10.838 dB. According to the graph of the dependence of the probability of a bit error on the average signalto-noise ratio, taking into account the calculated ratio, we can say that the necessary reception of signals is provided with a probability of a bit error per symbol of at least 10-6.

Practical significance. The presented method for calculating a satellite radio channel on the aircraft-satellite-Earth route allows, on the basis of the data obtained, to increase the accuracy of aircraft separation, to correct the actions of the crew in flight mode, and to reduce the likelihood of crew errors while controlling the aircraft.

1. Saranskij Yu.N. i dr. Aeronavigaciya: Ucheb. posobie. SPb: Sankt-Peterburskij gosudarstvennyj universitet grazhdanskoj aviacii. 2013. 325 s. (In Russian).
2. Kantor L.Ya. Sistemy sputnikovoj svyazi. M.: Radio isvyaz'. 1992 (In Russian).
3. Abolic A.I. Sistemy sputnikovoj svyazi. Osnovy strukturno-parametricheskoj teorii i effektivnost'. M.: Svyaz'. 2013. 424 s. (In Russian).
4. Sputnikovaya svyaz' i veshchanie. Pod red. L.YA. Kantora. Izd. 2-e. M.: Radio isvyaz'. 1988 (In Russian).
5. Novikov V. Bezopasnost' poletov aviacii obespechivayut sputnik svyazi I navigacii. Novye vozmozhnosti. [Elektronnyj resurs]. URL: http://www.tssonline.ru/ (Data obrashcheniya 10.05.2019) (In Russian).
6. Sklyar B. Cifrovaya svyaz'. Teoreticheskie osnovy i prakticheskoe primenenie: Per. s angl. Izd. 2-e izd. M.: ID «Vil'yams». 2003. 1104 s. (In Russian).
7. Borodich S.V. Antennyifidery. Peredacha informacii po kanalam svyazi. Kontrol' i izmereniya v tekhnikesvyazi. M.: NIIR. 2017. 100 s. (In Russian).
8. Somov A.M., Kornev S.F. Sputnikovye sistemy svyazi: Ucheb. posobie dlya vuzov. Pod red. A.M. Somova. M.: Goryachaya liniya – Telekom. 2012. 244 s. (In Russian).