MEASURING THE RELIABILITY OF SATELLITE RADIO NAVIGATION SYSTEMS USING THE METHOD OF GAME THEORY IN CONDITIONS OF UNCERTAIN INTERFERENCES

Abstract

Special attention is given to the issues of immunity of SRNS when performing navigational tasks in military affairs. A characteristic feature of SRNS is that they interact with very weak signals (-155...-160 dB/W), and reception of signals is carried out from the upper hemisphere by a weakly directional antenna. The article deals with measures to improve the immunity of the SRNS due to signal coding and communication with navigation satellites in the L1 and L2 frequency range. The introduction of publicly available and closed (military) codes is insufficient in connection with the intensive loading of radio frequency bands, the creation of new methods of jamming. It was determined that without guaranteed information about the malfunctioning situation, the consumer acts at his own risk, performing navigation determinations. It follows from this that the consumer's equipment must have a function of protection against intentional unspecified interference. In this regard, it is assumed that the relevant services control the electromagnetic compatibility of radio-electronic means in the area of operation of the SRNS.