Description: The article deals with improving interaction model of multiple groups of electronic means of aeronautical-radionavigation service and mobile electronic means of fourth generation (LTE) at the interconnection level based on analysis of the functioning features of aeronautical-radionavigation service military equipment and arising electromagnetic interactions with the base stations and subscriber terminals of LTE radio technology in the band 790 ... 862 Mhz. The mathematical apparatus for calculating of the multiple interactions of LTE radio technology electronic means with aeronautical-radionavigation service military equipment on the basis of using the of common areas of elementary interaction of different shapes is presented. The determination the improvement direction of the methods of forecasting and analysis of electromagnetic compatibility of groups of digital information and telecommunication systems with electronic navigation system radio-electronic means and with the air traffic control facilities is performed in order to maintain their functional properties. The method of analysis of inter-system electromagnetic compatibility of LTE radio-electronic means with military equipment of the aeronautical-radionavigation in the band of 792 ... 860 Mhz is developed on the basis of the improvement of the model of inter-system electromagnetic multiple interactions and application of the principles of decomposition and superposition of the broadband component radiofrequency spectrum of radiation of digital information transmission systems. The method allows to restrict the influence of radio-electronic means of LTE that is introduced in Ukraine on radioelectronic systems and means of Air Force military equipment that perform the tasks of navigation and air-traffic control.
Keywords: electromagnetic compatibility, model of multiple interaction, radio-electronic system, radio-navigation service, interaction area, mobile communication of the fourth generation