BROADBAND NOISE SUPPRESSION DEVICE Russian patent published in 2003 - IPC

FIELD: radio engineering; code-division communication and radar systems. SUBSTANCE: device functions to generate estimate of broadband noise using forward and inverse Fourier transforms followed by rejection of broadband noise from input mixture. In the process degree of broadband noise suppression is not reduced with increase in signal frequency uncertainty and with spectrum band extension of broadband noise, Device has delay circuits 1, 10, 13, 14, multipliers 2, 4, rejection filter 3, forward and inverse Fourier transform units 5 and 6, respectively, limiter 7, synchronizing unit 8, clock generator 9, subtracted 11, and limiting amplifier 12. EFFECT: enhanced reliability of noise suppression. 5 dwg