ISSN 0021-3454 (print version)
ISSN 2500-0381 (online version)
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Issue
vol 62 / April, 2019
Article

DOI 10.17586/0021-3454-2015-58-6-428-435

UDC 681.32

ERROR ESTIMATION FOR A FAST METHOD OF SPECTRAL ANALYSIS

N. Y. Mamedov
Azerbaijan State Oil Academy, Department of Higher Mathematics, Baku;


N. T. Abdullaev
Azerbaijan Technical University, Department of Television and Radio Systems, Baku;


G. S. Agaeva
Azerbaijan State Oil Academy, Department of Information-Measuring and Computer Technique; Baku;


A. N. Dzhapharova
Azerbaijan State Oil Academy, Department of Physics; Associate Professor


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Abstract. A method of spectral analysis is proposed for digital processing of measuring signals. Theoretical expressions for relative error of measuring signal transformation are derived. Sharp estimates of the error depending on differential and spectral properties of the measured signal are obtained. Application of the estimates makes it possible to justify the proposed method and to assure the desired accuracy of its realization.
Keywords: spectral analysis, Fourier coefficients, relative error, sampling interval, spectral analyzer