NDLI: A Grouped Fast Fourier Transform Algorithm Design For Selective Transformed Outputs

Content Provider	IEEE Xplore Digital Library
Author	Chih-Peng Fan Guo-An Su
Copyright Year	2006
Description	Author affiliation: Dept. of Electr. Eng., Nat. Chung Hsing Univ., Tai-chung (Chih-Peng Fan; Guo-An Su)
Abstract	In this paper, the grouped scheme is specially applied to compute the fast Fourier transform (FFT) when the portions of transformed outputs are calculated selectively. The grouped FFT algorithm applies the scheme of the grouped frequency indices to accelerate the computation of selected DFT outputs. The advantage of the grouped FFT algorithm is that it is more cost-effective than the convenient FFT algorithms when the authors need to compute parts of the transformed outputs, not all outputs. For computing all transformed outputs of the DFT, the computational complexity of the proposed FFT method is less than that of the radix-2 method. Meanwhile, the computational complexity of the proposed fast method approximates to that of the radix-4 FFT algorithm. By sharing coefficients of the twiddle factors in the same frequency group, the grouped FFT can be implemented with hardware sharing VLSI architectures
Starting Page	1939
Ending Page	1942
File Size	3592896
Page Count	4
File Format	PDF
ISBN	1424403871
DOI	10.1109/APCCAS.2006.342240
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-12-04
Publisher Place	Singapore
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Fast Fourier transforms Algorithm design and analysis Discrete Fourier transforms Signal processing algorithms Computational complexity Frequency Very large scale integration Discrete transforms Acceleration Hardware Selective Transformed Outputs Fast Fourier Transform Grouped Scheme
Content Type	Text
Resource Type	Article

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