METHOD AND DEVICE FOR EVALUATING BEARING FREQUENCY OF SIGNAL

FIELD: electronics. ^ SUBSTANCE: in the suggested method analog signal is digitized, and then serially transformed to a series of complex spectral coefficients in selected basis of Vilenkin-Chrestenson functions. B-spline of given order p-1, p=2,3,4,...,P is transformed to series of complex spectral coefficients in the same basis of Vilenkin-Chrestenson functions, in which discrete signal is transformed. Then complex discontinuous counts are divided element-wise, components of spectral power density are calculated in basis of Vilenkin-Chrestenson spline functions of given power p-1. Then, spectral component r is selected with maximal amplitude of signal power. Value of bearing signal frequency is computed suing formula fn=r.Deltaf, where Deltaf - distance between spectral power components. ^ EFFECT: increased speed and precision when estimating bearing frequency of signals of different shapes. ^ 2 cl, 4 dwg