METHOD OF SPACE PROCESSING OF SIGNAL (VARIANTS)

摘要

FIELD: radiolocation, tracking of objects by perspective radars. SUBSTANCE: modulation of weight of summation of energy of two fields of antenna displaying amplitude distributions of types f(x)#1 and 1-f(x) is carried out in proposed method of space processing of signal. In this case period of modulating oscillation is taken lesser than signal duration, decision on detection of signal is made if relative level of side lobes of compressed signal formed thanks to modulation does not exceed threshold value. According to one variant of method modulation of field distribution is conducted with frequency exceeding width of signal spectrum and decision on detection of signal is made if modulation depth does not exceed threshold value. Modulation of field distribution in aperture of phased array is realized by modulation of phase shifts in phase inverters or of gain factor in receiving modules of antenna. EFFECT: suppression of reception of signals in region of side lobes of antenna directional pattern. 5 cl