THE ANALYSES OF QUASI-OPTIMAL SIGNAL PROCESSING EFFICIENCY DURING THE DATA COMMUNICATIONS IN THE AIR TRAFFIC CONTROL SYSTEMS WITH THE AUTOMATICAL DEPENDENT OBSERVATION UNDER THE CONDITIONS OF IONOSPHERE AURORAL PERTURBATION IN THE POLAR REGIONS
The paper contains the problem decision of signal processing optimization in data transmission systems with PM and AM signals under condition of ionosphere auroral perturbation in polar regions/ The optimal signal processing at amplitude and phase fading remains the same like at its failing.