FIELD: electrical engineering.
SUBSTANCE: invention is related to digital processing of radio locating signals. Method consists in the fact that weight ratios of filter are formed, which are ratios of autoregression of observations input sampling, and they are used for filtration. In process of filtration counts if observations input sampling are multiplied by corresponding weight ratios and obtained products are summed up. Two input samplings of observations that have diversion of repetition rates or carrier frequencies are subjected to filtration. Autoregression coefficients that are formed by single sampling of observations are used as weight ratios for filtration of the other sampling of observations and vice verse. Diversion of repetition rates or carrier frequencies of two observation samplings is selected so that difference of their corresponding Doppler shifts of frequency is considerably less than Doppler shifts of frequency for every of observations sampling. At that due to smallness of noise velocity and corresponding differential Doppler frequency of noise it is effectively suppressed. At the same time useful signal that corresponds to high velocity and significant Doppler shift is not compensated.
EFFECT: higher efficiency of discrete noise filtration.
2 cl, 5 dwg
