DEVICE FOR SUPPRESSING BROADBAND PHASE-KEYED NOISE Russian patent published in 2003 - IPC

FIELD: radio engineering; broadband-signal communication systems. SUBSTANCE: device has series-connected first delay element, multiplier, and rejection filter, second rejection filter, and second multiplier; series-connected low-frequency filter whose input is connected to output of first multiplier, amplitude detector, and threshold comparison unit; series-connected third delay element and amplifier; series-connected limiter, band filter whose output is connected to reference input of first multiplier, and second delay element whose output is connected to reference input of second multiplier; it also has switch whose first and second signal inputs are connected respectively to amplifier output and to second multiplier output, third control input, to output of threshold comparison unit; inputs of first and third delay elements as well as limiter output function as device input. EFFECT: enhanced degree of high-power noise suppression. 3 dwg