Ensuring Electromagnetic Compatibility of Radionavigation Systems of Aircraft and Cellular Facilities

Abstract

The paper considers the results of the analysis of the causes of unintentional interference to on‑Board and ground equipment of the radio system of near navigation and landing radio beacon landing group, as well as the basic methods and means to ensure the noise immunity of standard equipment on airfields of the Russian Federation. It is noted that the most significant sources of unintended radio interference affecting the operation of on‑Board equipment of radio systems of short‑range navigation of aircraft in its operation with the radio beacons of radio systems of short‑range navigation and landing radio beacon group are the base stations of cellular networks of various standards of 900 MHz range, radio electronic means of television broadcasting, as well as base stations of cellular networks of LTE‑800 standard. It is indicated that with the introduction of azimuth‑long‑range radio beacons of Tropa‑SMD type in operation at aerodromes, the beginning of the transfer of radio‑electronic means of radio short‑range navigation and landing radio beacon into the international frequency range has been outlined. At the same time, there were identified problems in the functioning of the Tropa‑SMD associated with electromagnetic compatibility and regular operation of other electronic means in the same frequency bands. The methods of electromagnetic compatibility in the operation of short‑range navigation radio systems and landing radio beacon group in a complex electronic environment are considered. Proposals to ensure electromagnetic compatibility of Tropa‑SMD based on the use of a set of input filters are presented in more detail.