DocumentCode
3025621
Title
The odd discrete Fourier transform
Author
Rowlands, Richard O.
Author_Institution
Pennsylvania State University, State College, Pa.
Volume
1
fYear
1976
fDate
27851
Firstpage
130
Lastpage
133
Abstract
It is shown that the Discrete Fourier Transform (DFT), when used in the conventional manner with the frequency samples located at zero and integer multiples of 1/T, where T is the signal duration, gives an inaccurate representation of the spectrum of certain frequencies that are located near the top and bottom end of the band. It is further shown that this type of error can be eliminated by using the Odd Discrete Fourier Transform (ODFT) in which the frequency samples are located at odd multiples of 1/2T. An application of the ODFT in two dimensional filtering is also discussed.
Keywords
Discrete Fourier transforms; Discrete transforms; Equations; Filtering; Fourier transforms; Frequency domain analysis; Power harmonic filters;
fLanguage
English
Publisher
ieee
Conference_Titel
Acoustics, Speech, and Signal Processing, IEEE International Conference on ICASSP '76.
Type
conf
DOI
10.1109/ICASSP.1976.1170122
Filename
1170122
Link To Document