FREQUENCY-REUSE RADIO COMMUNICATION LINE Russian patent published in 2003 - IPC

FIELD: radio communications; space and ground radio communication systems. SUBSTANCE: radio line has on sending end main-message generator connected to power splitter, two amplitude modulators connected to paraphase amplifier whose input is supplied with Sg information; amplitude modulator outputs are connected to transmitter antenna feeds; on receiving end it has two receiving-antenna exciters connected to polarization positioning unit whose outputs are connected to adder and subtracter, and also synchronous detector and narrow-band lowfrequency filter connected to input of polarization positioning unit, Sg information is picked off synchronous detector output; novelty is that additionally introduced on receiving end are pre-selection filter, analysis filter, analyzing unit, and adjustable amplifier whose output is connected to second input of synchronous detector and functions as output of master data So, and also high-frequency amplifier, and main- signal filter connected to second input of adjustable amplifier; pre-selection filter output is connected to input of high-frequency amplifier; adder output is connected to pre-selection filter input and subtracter output, to first input of synchronous detector through delay line. EFFECT: enhanced immunity to spectrum- concentrated noise. 4 dwg