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Numerical Fourier analysis in the range of higher frequencies
Author(s) -
Ury J. F.
Publication year - 1977
Publication title -
international journal for numerical methods in engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.421
H-Index - 168
eISSN - 1097-0207
pISSN - 0029-5981
DOI - 10.1002/nme.1620110307
Subject(s) - spectrum analyzer , range (aeronautics) , computation , fourier transform , fast fourier transform , spectrum (functional analysis) , fourier series , harmonic analysis , harmonic , algorithm , field (mathematics) , numerical analysis , computer science , mathematics , mathematical analysis , acoustics , physics , engineering , telecommunications , quantum mechanics , pure mathematics , aerospace engineering
Abstract A novel method is proposed for the numerical computation of Fourier coefficients in the range of higher frequencies for which hitherto no practical method was available. The accuracy of the results obtained by application of this method is discussed, and bounds of a correction term are determined accordingly. An example from the field of Diesel engine research is given, and the computed spectrum is compared with the spectrum recorded by an electronic harmonic analyzer.