DocumentCode
1033058
Title
Comments on and extensions to "Evaluation of Fourier integrals using a FFT with improved accuracy and its applications"
Author
Yeung, W. ; Narasimhan, M. ; Karthikeyan, Madurakavi
Author_Institution
Univ. Engineering Lab., Cambridge, UK
Volume
33
Issue
8
fYear
1985
fDate
8/1/1985 12:00:00 AM
Firstpage
924
Lastpage
926
Abstract
The evaluation of Fourier integrals using fast Fourier transform (FFT) employing the Narasimhan scheme is examined. It is observed to be a special case of spline interpolation. His method is effective when the sampling rate is sufficiently high and piecewise linear approximation between sampling points is adequate. If knowledge about the signal smoothness is available, further improvement in accuracy can be achieved by judicious choice of high degree spine interpolant.
Keywords
DFT; Discrete Fourier transforms (DFT´s); Antenna measurements; Discrete transforms; Fourier series; Frequency; Interpolation; Near-field radiation pattern; Piecewise linear approximation; Pulse modulation; Sampling methods; Spline;
fLanguage
English
Journal_Title
Antennas and Propagation, IEEE Transactions on
Publisher
ieee
ISSN
0018-926X
Type
jour
DOI
10.1109/TAP.1985.1143673
Filename
1143673
Link To Document