DocumentCode
914804
Title
Interpolation of 2-D signal by subsequence FFT
Author
Chan, S.C. ; Ho, K.L. ; Kok, C.W.
Author_Institution
Dept. of Electron. Eng., City Polytech. of Hong Kong, Kowloon, Hong Kong
Volume
40
Issue
2
fYear
1993
fDate
2/1/1993 12:00:00 AM
Firstpage
115
Lastpage
118
Abstract
Discrete interpolation between successive samples of a sequence is often required in digital signal processing. The subsequence approach for 1-D interpolation is extended to two dimensions to avoid redundant operations. An improved intermediate sequence is proposed to preserve the Hermitian symmetry in interpolating real-valued signals. The resulting algorithms is very efficient and convenient because it permits the use of inverse FFTs with sizes that are the same as the corresponding forward transforms
Keywords
digital signals; fast Fourier transforms; interpolation; signal processing; 2D signal interpolation; Hermitian symmetry; digital signal processing; discrete interpolation; intermediate sequence; inverse FFTs; real-valued signals; subsequence FFT; Design automation; Digital signal processing; Fast Fourier transforms; Fault tolerance; Interpolation; Logic arrays; Logic testing; Notice of Violation; Programmable logic arrays; Signal processing algorithms;
fLanguage
English
Journal_Title
Circuits and Systems II: Analog and Digital Signal Processing, IEEE Transactions on
Publisher
ieee
ISSN
1057-7130
Type
jour
DOI
10.1109/82.219842
Filename
219842
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