STUDY OF THE INFLUENCE OF NARROWBAND UNINTENTIONAL INTERFERENCE ON THE SUBSTANTIATION OF REQUIREMENTS FOR THE ENERGY RESERVE OF A SATELLITE RADIO LINK WHEN TRANSMITTING SIGNALS WITH BINARY FREQUENCY MANIPULATION AND NON-COHERENT DETECTION

The article describes a methodical approach to calculating the energy reserve of the Earth-Space satellite radio link under conditions of unintentional narrow-band noise interference. Using binary frequency-shift keying and non-coherent detection signals as an example, the dependences of the obtained level of radio link energy reserve on the interference overlap coefficient by frequency are presented. The studies were conducted using analytical and simulation modeling for different carrier frequencies and with different requirements for the bit error probability. As part of the solution to this problem, it was shown that when exposed to unintentional interference of the same power, but concentrated in a part of the signal spectrum, a more negative effect is observed than when interference is present across the entire reception band.