FIELD: discrete spectral analysis, in particular, for radar equipment and instruments. SUBSTANCE: method involves sampling signal, which duration is T, with N sampling points, calculation of its discrete spectrum, detection maximal spectral constituent number K, its amplitude as well as number and amplitude of maximal of its adjacent constituents, measuring signal frequency using this data according to equation given in invention specification. EFFECT: increased precision, independence of measurement from signal duration. 2 dwg
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