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  • License: Freeware
  • Last update: 6 years ago
  • Total downloads: 321
  • Price: Free |
  • Operating system: Linux, Mac OS X, Win All, BSD, Solaris
  • Publisher: Mike Donovan (5 other programs)
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scripts default iconFixed Point Radix-4 FFT (Scripts) Publisher's description

This file runs three versions of a Radix-4 FFT written in MATLAB

Radix-4 FFT Test Script
This file runs three versions of a Radix-4 FFT written in MATLAB:

radix4FFT1_Float.m computes a radix-4 FFT for floating point data types

radix4FFT2_FixPt.m computes a fixed point radix-4 FFT (requires Fixed Point Toolbox)

radix4FFT3_FixPtEML.m is an Embedded MATLAB version of the radix-4 FFT that can be used in Simulink. You can also generate C code for this code (using Real Time Workshop). This version can also be compiled into a MEX'd executable that runs significantly faster than the fixed point code.

For a description of the radix-4 FFT algorithm see the following link to DSPDesignLine.com:

http://www.dspdesignline.com/showArticle.jhtml;jsessionid=5DBROAJQ3SIWCQSNDLOSKHSCJUNN2JVN?articleID=204400676&queryText=freescale+fft ://http://www.dspdesignline.com/showAr...=freescale+fft

System Requirements:

MATLAB 7.7 (R2008b)
Program Release Status: New Release
Program Install Support: Install and Uninstall

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