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About: Power-of-two FFTs

Module by: Douglas L. Jones. E-mail the author

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Name: Power-of-two FFTs
ID: m12059
Language: English (en)
Summary: FFTs of length equal to a power of two are by far the most commonly used. Radix-2 decimation-in-time and decimation-in-frequency algorithms are the simplest power-of-two algorithms. Radix-4 and higher-radix algorithms require somewhat fewer complex multiplications but the same number of complex additions. The split-radix algorithm requires fewer complex multiplies than other power-of-two algorithms.
Subject: Science and Technology
Keywords: FFT, radix-2 FFT, radix-4 FFT, split-radix FFT
Document Type: -//CNX//DTD CNXML 0.5 plus MathML//EN
License: Creative Commons Attribution License CC-BY 1.0
Authors: Douglas L. Jones (dl-jones@uiuc.edu)
Copyright Holders: Douglas L. Jones (dl-jones@uiuc.edu)
Maintainers: Douglas L. Jones (dl-jones@uiuc.edu), Kyle Clarkson (kclarks@gmail.com)
Latest version: 1.2 (history)
First publication date: May 14, 2004 5:21 pm -0500
Last revision to module: Aug 31, 2006 9:32 am -0500

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Version History

Version: 1.2 Aug 31, 2006 9:32 am -0500 by Douglas L. Jones
Changes: 
Essentially rewrote it completely.
Added lots of links.
Version: 1.1 Jun 25, 2004 10:18 am -0500 by Kyle Clarkson
Changes: 
First Submission

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American Chemical Society (ACS) Style Guide:

Jones, D. Power-of-two FFTs, Connexions Web site. http://cnx.org/content/m12059/1.2/, Aug 31, 2006.

American Medical Assocation (AMA) Manual of Style:

Jones D. Power-of-two FFTs [Connexions Web site]. August 31, 2006. Available at: http://cnx.org/content/m12059/1.2/.

American Psychological Assocation (APA) Publication Manual:

Jones, D. (2006, August 31). Power-of-two FFTs. Retrieved from the Connexions Web site: http://cnx.org/content/m12059/1.2/

Chicago Manual of Style (Bibliography):

Jones, Douglas. "Power-of-two FFTs." Connexions. August 31, 2006. http://cnx.org/content/m12059/1.2/.

Chicago Manual of Style (Note):

Douglas Jones, "Power-of-two FFTs," Connexions, August 31, 2006, http://cnx.org/content/m12059/1.2/.

Chicago Manual of Style (Reference, in Author-Date style):

Jones, D. 2006. Power-of-two FFTs. Connexions, August 31, 2006. http://cnx.org/content/m12059/1.2/.

Modern Languages Association (MLA) Style Manual:

Jones, Douglas. Power-of-two FFTs. Connexions. 31 Aug. 2006 <http://cnx.org/content/m12059/1.2/>.