The interpolated fast Fourier transform: a comparative study

Author

Schoukens, J. ; Pintelon, R. ; Van Kamme, H.

Author_Institution

Dept. of Electron., Vrije Univ., Brussels, Belgium

fYear

1991

Firstpage

358

Lastpage

364

Abstract

The properties of five interpolating fast Fourier transform methods (IFFT) are studied with respect to their systematic errors and their noise sensitivity, for a monofrequency signal. It is shown that windows with small spectral sidelobes do not always result in a better overall performance of the IFFT and that time-domain estimators can be more efficient than the IFFT methods analyzed. It is also, shown that time-domain techniques have a lower Cramer-Rao lower bound than the IFFT methods, which can result in more efficient estimates

Keywords

fast Fourier transforms; interpolation; parameter estimation; signal processing; spectral analysis; Cramer-Rao lower bound; interpolated fast Fourier transform; monofrequency signal; noise sensitivity; spectral sidelobes; systematic errors; time-domain estimators; time-domain techniques; Discrete Fourier transforms; Fast Fourier transforms; Frequency domain analysis; Frequency estimation; Frequency measurement; Performance analysis; Signal analysis; Spectral analysis; Time domain analysis; Time measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference, 1991. IMTC-91. Conference Record., 8th IEEE

Conference_Location

Atlanta, GA

Print_ISBN

0-87942-579-2

Type

conf

DOI

10.1109/IMTC.1991.161614

Filename

161614