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Dual Frequency, Touch-Tone

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Dual Frequency, Touch-Tone

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Touch-Tone :Frequency analysis with FFT.

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Description

This program is an open project, based on an example of Cleve Moler " Fourier Analysis" [1] for Dual Frequency analysis for GSM.
The features are :
1. Frequency computation of the cellphone numbers 0-9,
2. the ability to generate a Random number as simulating of calling a number composed of 10 digits, and analyse the entire signal .

The frequency analysis is based on Finite Fourier Transform (FFT),

The program still needs some enhancements.
More information can be found in the following link:
[1]:http://www.mathworks.com/moler/fourier.pdf>

MATLAB release MATLAB 7.4 (R2007a)
Other requirements Sound card,
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10 Dec 2013 zz xy  

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