Analysis of the Influence of Electromagnetic Emission from Stationary Plasma Thrusters on the Interference Immunity of the Earth–Spacecraft Communication Channel

A complete cycle of studies is considered, which are related to obtaining knowledge on spectral and time-response characteristics of emission from stationary plasma thrusters (SPTs), to the development of mathematical and simulation models of such emission, and assessment of its influence on the interference immunity of space communication systems. The reliability of data transmission via Earth–spacecraft digital communication channels is assessed based on the results of simulation modeling. The bit error rate is studied as a function of signal-to-noise and signal-to-SPT-interference ratios. Power loss of the communication channel in the presence of SPT emission relative to the standard system is considered as its interference immunity indicator. Calculations are made for the power budget of deep- and near-space radio links. Power loss is assessed for the Earth–Mars radio links and within the geostationary orbit. Recommendations on reducing the SPT emission effect are presented.