Presentation 1993/5/21
Pruning the Real-Valued FFT Algorithms for Efficient Interpolation and Linear Convolution
Todor Cookler, Akinori Nishihara,
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Abstract(in English) The DFT and the IDFT are often performed on sequences,which contain many zeros.Typical examples,considered in this report are time-domain interpolation and the computation of linear convolution.To achieve efficiency the operations on zeros must be eliminated.Such techniques exist for the complex-valued FFT algorithms.In the majoritr of practical cases real signals are processed.Then real-valued algorithms,that involve real arithmetic are more suitable.In the report we demonstrate that pruning can be applied to the real-valued algorithms as well.Three algorithms are considered:radix 2,split-radix and Bruun′s FFT.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) fast Feurier transfermr / real FFT algorithms / pruning
Paper # CAS93-14,VLD93-14,DSP93-24
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Committee CAS
Conference Date 1993/5/21(1days)
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Registration To Circuits and Systems (CAS)
Language ENG
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Pruning the Real-Valued FFT Algorithms for Efficient Interpolation and Linear Convolution
Sub Title (in English)
Keyword(1) fast Feurier transfermr
Keyword(2) real FFT algorithms
Keyword(3) pruning
1st Author's Name Todor Cookler
1st Author's Affiliation Depaartment of Physical Electronics,Faculty of Engineering,Tokyo Institute of Technology()
2nd Author's Name Akinori Nishihara
2nd Author's Affiliation Depaartment of Physical Electronics,Faculty of Engineering,Tokyo Institute of Technology
Date 1993/5/21
Paper # CAS93-14,VLD93-14,DSP93-24
Volume (vol) vol.93
Number (no) 34
Page pp.pp.-
#Pages 8
Date of Issue