FIELD: radio engineering, communication.
SUBSTANCE: method to assess frequency of a single harmonic oscillation in a limited range includes accumulation of counts of a signal of a mixture of a harmonic oscillation and noise in parallel for several subranges in the suggested range of frequency finding, differing by the fact for each accumulated signal the amplitudes of the accumulated signal are found in complex planes formed by reference frequencies, then the maximum value of the amplitude is determined, which defines the first frequency rating, then the difference is found between the maximum value of the amplitude and the neighbouring ones, if the difference is lower than the threshold value, then the rated value of frequency complies with the frequency value, which is the border of neighbouring subranges.
EFFECT: reduction of computing costs necessary for frequency rating, increased accuracy of harmonic oscillation frequency rating.
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