FIELD: direction finding systems.
SUBSTANCE: invention relates to direction finding systems for moving objects based on the processing of radio or acoustic (hydroacoustic) signals received by an antenna array (AA). Unlike the prototype, in which the angular coordinates of moving objects are found by the phase method by highlighting the Doppler frequencies of objects in the spectra of the intermediate frequency of several measuring channels, followed by measuring the phases of the selected spectral components, in the proposed method, the Doppler frequencies of objects are distinguished in the time domain by smoothing the signals as they arrivals in the measuring channels, and the phases are also measured in the time domain by applying the incoming signals to the input of a specially tuned Kalman filter, taking into account the found frequencies, the output of which is the phase estimates, which makes it possible to reduce the time of measuring the phases and finding the angular coordinates of objects by half.
EFFECT: providing a reduction in signal processing time due to signal processing not in the frequency domain, but in the time domain.
1 cl, 1 tbl
