DEVELOPMENT OF MATHEMATICAL SOFTWARE OF LINK BUDGET OF NANOSATELLITE BY USING MATLAB-GUI

The article discusses the issue of developing a program in the MATLAB-GUI environment for calculating the energy parameters of a satellite communication line. A calculation procedure for low-orbit communications satellites is given, the calculation is based on ITU Recommendations for accounting for attenuation in free space, rain and atmosphere. It describes the construction of the program and the interface of the program, notes the advantages of the software-mathematical product being created, such as the possibility of calculation for low-orbit and geostationary transponders, a user-friendly interface, the ability to display the results in a graph. The program takes into account the influence of both external factors and the internal characteristics of the receiver, antenna, antenna-feeder path. The program can be used in the educational process by students studying radio engineering.

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2. https://docplayer.ru/44272175-Programmnyy-kompleks-byudzhet.html (March, 2019)

3. Recommendation ITU P.618-12 (07/2015). Propagation data and prediction methods required for the design of Earth-space telecommunication systems.

4. Recommendation ITU P.676: Attenuation by atmospheric gases.

5. Recommendation ITU P.838 : Specific attenuation model for rain for use in prediction methods.