File:Fourier transform time and frequency domains.gif
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Fourier_transform_time_and_frequency_domains.gif (500 × 400 pixels, file size: 399 KB, MIME type: image/gif, looped, 93 frames, 37 s)
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| Description |
English: A visualization of the relationship between the time domain and the frequency domain of a function, based on its Fourier transform.
The Fourier transform takes an input function f (in red) in the "time domain" and converts it into a new function f-hat (in blue) in the "frequency domain". In other words, the original function can be thought of as being "amplitude given time", and the Fourier transform of the function is "amplitude given frequency". Shown here, a simple 6-component approximation of the square wave is decomposed (exactly, for simplicity) into 6 sine waves. These component frequencies show as very sharp peaks in the frequency domain of the function, shown as the blue graph. |
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| Date | |||
| Source | Own work | ||
| Author | Lucas Vieira | ||
| Permission (Reusing this file) |
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| Other versions | (separate files were necessary due to the awfulness of MediaWiki's thumbnail generator) |
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 21:42, 23 February 2013 | | 500 × 400 (399 KB) | wikimediacommons>LucasVB | Reverted to version as of 20:31, 23 February 2013 |
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