DocumentCode :
939928
Title :
Method for partial spectrum computation
Author :
de Wild, R. ; Nieuwkerk, L.R. ; van Sinttruyen, J.S.
Author_Institution :
Delft University of Technology, Faculty of Electrical Engineering, Delft, Netherlands
Volume :
134
Issue :
7
fYear :
1987
fDate :
12/1/1987 12:00:00 AM
Firstpage :
659
Lastpage :
666
Abstract :
After a brief review of discrete Fourier transformation (DFT) ¿¿ and fast Fourier transformation (FFT) ¿¿ properties, two representatives of partial (narrowband) spectrum computation methods, the zoom FFT and a specific type of zoom transform, are introduced. With respect to the FFT, only the zoom transform sufficiently fits demands concerning memory space and computional speed. Moreover, it offers improved accuracy and applicability relative to the existing type of zoom transform. The described transform method, a link between an FFT and a single DFT sum, is compared with the use of separate DFT sums.
Keywords :
digital filters; fast Fourier transforms; filtering and prediction theory; radar theory; DFT; DFT sums; FMCW radar; accuracy; applicability; computational speed; discrete Fourier transformation; fast Fourier transformation; frequency modulated continuous wave; memory space; partial spectrum computation; zoom FFT; zoom transform;
fLanguage :
English
Journal_Title :
Communications, Radar and Signal Processing, IEE Proceedings F
Publisher :
iet
ISSN :
0143-7070
Type :
jour
DOI :
10.1049/ip-f-1.1987.0109
Filename :
4647283
Link To Document :
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