CORRECTIONS FOR FREQUENCY, AMPLITUDE AND PHASE IN A FAST FOURIER-TRANSFORM OF A HARMONIC SIGNAL

Authors
MING X KANG D
Citation
X. Ming et D. Kang, CORRECTIONS FOR FREQUENCY, AMPLITUDE AND PHASE IN A FAST FOURIER-TRANSFORM OF A HARMONIC SIGNAL, Mechanical systems and signal processing, 10(2), 1996, pp. 211-221
Citations number
4
Categorie Soggetti
Engineering, Mechanical
Journal title
Mechanical systems and signal processing → ACNP
ISSN journal
08883270
Volume
10
Issue
2
Year of publication
1996
Pages
211 - 221
Database
ISI
SICI code
0888-3270(1996)10:2<211:CFFAAP>2.0.ZU;2-K
Abstract
This paper advances a new method which can correct the spectrum peak v alue of the rms spectrum in order to decrease the errors that exist wh en the spectral line is not on the peak. The authors first use the bar ycentre of spectral lines in the main lobe to obtain the coordinate of the spectrum peak. By this means the accurate frequency, amplitude an d phase of the spectrum peak are obtained. (C) 1996 Academic Press Lim ited