Energetic concealment of low-frequency sattelite communication system with arbitrary recession of radiointercepting receiver

Abstract

A method has been developed for evaluation of the energetic concealment factor of a satellite communication system that utilizes lowered carrier frequency down to 30. . . 100 MHz (such that wave propagation is followed by scattering on the ionospheric inhomogeneities), a transmitting antenna of an Artificial Earth Satellite with directional pattern width based on the zeroed radiation level within the state border of Russia and diversified signal reception with two antennas, with arbitrary recession of a radio interception receiver from a ground-based satellite communication receiver. It has been established that, in such case, the energetic concealment coefficient value of no lower that 27 dB is provided