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Title Sine Fourier Transform-based Frequency Estimation
Authors (Ivan Kostiukov)
DOI https://doi.org/10.5573/IEIESPC.2021.11.1.14
Page pp.14-23
ISSN 2287-5255
Keywords Spectral methods; Bias of estimation; Sidelobes; Orthogonal functions
Abstract This paper presents an approach for frequency estimation based on applying a sine Fourier transform and observations of particularly selected characteristic points of sidelobes. The bias of frequency estimation caused by the refusal to complement the developed algorithm by a corresponding cosine transform is eliminated by a specific selection of frequencies, for which a Fourier transform is calculated, and consecutive iteration of calculations is done for various durations of the analyzed signal. This paper also presents approaches for the recognition of a frequency interval with the exact value of frequency for a case of an analyzed signal with noise contamination.