Computation of the fractional Fourier transform

被引：97
|
作者：
Bultheel, A [1 ]
Martinez Sulbaran HE [1 ]
机构：
[1] Dept Comp Sci, Celestijnenlaan 200A, B-3001 Louvain, Belgium
来源：
APPLIED AND COMPUTATIONAL HARMONIC ANALYSIS | 2004年 / 16卷 / 03期
关键词：
fractional Fourier transform;
D O I：
10.1016/j.acha.2004.02.001
中图分类号：
O29 [应用数学];
学科分类号：
070104 ;
摘要：
In this paper we make a critical comparison of some MATLAB programs for the digital computation of the fractional Fourier transform that are freely available and we describe our own implementation that filters the best out of the existing ones. Two types of transforms are considered: first, the fast approximate fractional Fourier transform algorithm for which two algorithms are available. The method is described in [H.M. Ozaktas, M.A. Kutay, G. Bozdagi, IEEE Trans. Signal Process. 44 (1996) 2141-2150]. There are two implementations: one is written by A.M. Kutay, the other is part of package written by J. O'Neill. Second, the discrete fractional Fourier transform algorithm described in the master thesis by C. Candan [Bilkent University, 1998] and an algorithm described by S.C. Pei, M.H. Yeh, and C.C. Tseng [IEEE Trans. Signal Process. 47 (1999) 1335-1348]. (C) 2004 Elsevier Inc. All rights reserved.
引用
收藏
页码：182 / 202
页数：21
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