Assessment of information support quality by “friend or foe” identification systems

Abstract

Based on the assessment of the aircraft responders and ground-based radio transponders noise immunity it is shown that the identification “friend-or-foe” systems have a low quality of informational support of the air space control system due to the openness of the interrogation channel and, as a consequence, the possibility of the concerned party to influence on the quality of operation of the aircraft responder due to the radiation of simulated interrogation signals of the simulation steady mode.