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Frequency Spectrum of a Noisy Signal
This Demonstration generates a sine wave signal with random noise. You can visualize a plot of the signal's amplitude or its frequency spectrum. The frequency spectrum is calculated using the discrete Fourier transform of sampled amplitude values.
Contributed by:
Jon McLoone
THINGS TO TRY
Slider Zoom
SNAPSHOTS
RELATED LINKS
Discrete Fourier Transform
(
Wolfram
MathWorld
)
Fast Fourier Transform
(
Wolfram
MathWorld
)
PERMANENT CITATION
"
Frequency Spectrum of a Noisy Signal
" from
the Wolfram Demonstrations Project
http://demonstrations.wolfram.com/FrequencySpectrumOfANoisySignal/
Contributed by:
Jon McLoone
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