ASN11 - Leakage demonstration in Octave: Difference between revisions

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Leakage occurs when the Discrete Fourier Transform (DFT) is applied to a signal whose range is not a multiple of the total period.
Leakage occurs when the Discrete Fourier Transform (DFT) is applied to a signal whose range is not a multiple of the total period.
The DFT function assumes that the signal is periodic.
The DFT function assumes that the signal is periodic.



example octave script no leakage

fs=1500

t=[1:20]/fs;

y=sin(2*pi*t);

x= dft(y);

example octave script no leakage

fs=1500

t=[1:20]/fs;

y=sin(2*pi*t);

x= dft(y);

Revision as of 16:14, 21 December 2009

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Leakage occurs when the Discrete Fourier Transform (DFT) is applied to a signal whose range is not a multiple of the total period. The DFT function assumes that the signal is periodic.


example octave script no leakage

fs=1500

t=[1:20]/fs;

y=sin(2*pi*t);

x= dft(y);

example octave script no leakage

fs=1500

t=[1:20]/fs;

y=sin(2*pi*t);

x= dft(y);

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