METHOD AND SYSTEM OF REGENERATING SIGNALS IN FORM OF RECURRENT PULSES WITH FAST TUNEABLE FREQUENCY USING DECONVOLUTION METHOD AND THEIR APPLICATION

摘要

FIELD: physics; communication.;SUBSTANCE: present invention relates to processing radar signals. The regeneration technique through signal deconvolution, which is a sequence of pulses with fast tuneable carrier frequency, involves combination of pulses with the same carrier frequency into a packet (stage SO), and discretisation, obtaining sample pulse x(t_m). Conversion is done from the time domain to the frequency domain (stage S2). Spectra of radar clutter are separated (stage S3) and the spectral components of radar clutter are evaluated based on the average value and width of their separated spectra (stage S4). The evaluated spectra of radar clutter are subtracted from the general spectrum (S5) and the remaining spectra are deconvoluted (stage S6). In one version of the method, there is an additional stage between stages SO and S2, on which, if the discrete signal is in form of pulses with irregular or variable period of repetition, irregular sample pulses are converted to regular sample pulses with replacement of missing values with zeroes (stage 1).;EFFECT: efficient counteracting active radio jamming without bandwidth reduction of Doppler frequencies.;15 cl, 3 dwg