Title
The Regular Fourier Matrices and Nonuniform Fast Fourier Transforms
Abstract
For any triple of positive integers (m,N,q), the matrix F(m,N,q), called the (m,N,q)-regular Fourier matrix, is defined. The regular Fourier matrices F(m,N,q) are then applied to set up new algorithms for nonuniform fast Fourier transforms. Numerical results show that the accuracies obtained by our algorithms are much better than previously reported results with the same computation complexity. The algorithms require $O(N\cdot\log_2N)$ arithmetic operations, where N is the number of data points.
Year
DOI
Venue
1999
10.1137/S1064827597325712
Siam Journal on Scientific Computing
Keywords
Field
DocType
nonuniform fast Fourier transform,unequally spaced data,interpolations,trigonometric series,FFT,approximation theory
Integer,Trigonometric series,Matrix (mathematics),Mathematical analysis,Interpolation,Approximation theory,Fourier transform,Fast Fourier transform,Mathematics,Computational complexity theory
Journal
Volume
Issue
ISSN
21
1
1064-8275
Citations 
PageRank 
References 
27
4.92
0
Authors
2
Name
Order
Citations
PageRank
Nhu Nguyen1295.65
Qing-Huo Liu228853.70