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showcase    

Introducing EngineerZone, where DSP engineers go for answers
A new online technical support forum by Analog Devices providing direct access to DSP support engineers. Search FAQs and share knowledge with DSP developers and peers. Join us www.analog.com/EZ
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example    

Fourier Transform
Examples of * The Discrete Fourier Transform * The Inverse Discrete Fourier Transform * The Centered Finite Fourier Transform * The Centered Finite Inverse Fourier Transform * Forward Fourier Transform of a Double-Precision Vector * Inverse Fourier Transform of a Double-Precision Vector * The Unevenly Spaced Lomb-Fourier Transform * etc.
preview: http://www.omatrix.com  

portal    

Logix4u.net
Fourier transform techniques, transform data between time and frequency domains. To transform a time domain signal to a frequency domain signal , fourier transform is used. Inverse fourier transform transforms frequency domain signal to time domain signal. Discrete fourier transform is used in Digital signal processing applications since it is the only transform that can be computed using a computer. Also DSP info.
preview: http://www.logix4u.net  

resource    

Jörg's FFT Code and Related Stuff
Download page for the author's FXT software package for FFT computation.
preview: http://www.jjj.de  

hot list    

The Practical Transformer
This hot list is an excellent starting point for finding resources on the Web related to transforms such as Fourier, Hankel, Wavelet, Haar, and more. Links include tutorials, general information, and implementation.
preview: http://perso.wanadoo.fr