METHOD FOR FREQUENCY-TIME SIGNAL PROCESSING Russian patent published in 2023 - IPC G01S13/89 G01S7/41 

FIELD: radio signals.

SUBSTANCE: systems for processing radio signals in transceiver stations that emit and receive harmonic signals reflected from moving air sources in phase shift keying mode according to the Barker code. The method of frequency-time signal processing additionally involves joint processing of signals, carried out in the frequency and time domains. In the time domain, the moments of arrival of signals from sources are located and their number is determined at each time interval. In the frequency domain, for each time interval, frequencies are detected at which sources are distinguishable and not distinguishable. The coordinates of distinguishable sources are estimated, as well as those that are not distinguishable in the presence of two sources, are determined.

EFFECT: joint frequency-time processing of received signals in order to detect and determine the coordinates of several sources, identification of possible detection errors and super-resolution in case of two sources.

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