DocumentCode
897891
Title
Discrete Fourier transforms when the number of data samples is prime
Author
Rader, Charles
Volume
56
Issue
6
fYear
1968
fDate
6/1/1968 12:00:00 AM
Firstpage
1107
Lastpage
1108
Abstract
The discrete Fourier transform of a sequence of N points, where N is a prime number, is shown to be essentially a circular correlation. This can be recognized by rearranging the members of the sequence and the transform according to a rule involving a primitive root of N. This observation permits the discrete Fourier transform to be computed by means of a fast Fourier transform algorithm, with the associated increase in speed, even though N is prime.
Keywords
Circuit noise; Discrete Fourier transforms; Discrete transforms; Electrons; Equivalent circuits; Fast Fourier transforms; Fourier transforms; Frequency;
fLanguage
English
Journal_Title
Proceedings of the IEEE
Publisher
ieee
ISSN
0018-9219
Type
jour
DOI
10.1109/PROC.1968.6477
Filename
1448407
Link To Document