METHOD AND OPTICAL DETECTOR FOR PROCESSING COHERENT BINARY OPTICAL SIGNALS UNDER SPONTANEOUS RADIATION NOISE AND HARD RADIATION CONDITIONS

摘要

FIELD: fiber-optic communications engineering and applied systems. SUBSTANCE: method includes reception of coherent binary optical signal, its photo detection, counting of number of photoelectrons to be used for calculating similitude ratio during observation interval, which is then compared with zero threshold. EFFECT: enhanced noise immunity in receiving binary signals under spontaneous radiation noise conditions. 2 cl, 3 dwg