Title

Algorithm To Retrieve Real Coefficients Of A 2-Dimensional Fourier-Series Using Complex One-Dimensional Ffts

Authors

Authors

A. J. Kassab;R. S. Nordlund

Comments

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Abbreviated Journal Title

Adv. Eng. Softw.

Keywords

2-DIMENSIONAL FOURIER SERIES; FAST FOURIER TRANSFORMS; Computer Science, Interdisciplinary Applications; Computer Science, ; Software Engineering

Abstract

Complex notation is used almost exclusively when dealing with two-dimensional Fourier series. Fast Fourier transform algorithms efficiently compute the complex Fourier coefficients of these complex series. There are instances, however, where the real form of the series may be preferred or required. The coefficients of the real series are related in an implicit manner to the complex coefficients of the complex series. In this paper, an algorithm is developed to efficiently and accurately extract the Fourier coefficients of a real two-dimensional discrete Fourier transform. An illustrative example is presented for validation of the algorithm, and a FORTRAN program listing is provided.

Journal Title

Advances in Engineering Software

Volume

19

Issue/Number

1

Publication Date

1-1-1994

Document Type

Article

Language

English

First Page

41

Last Page

44

WOS Identifier

WOS:A1994PH41600004

ISSN

0965-9978

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