Difference between revisions of "Geopsy: Whiten"
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(New page: '''Whiten''', reached from the Waveform menu, whiten the signals in the active signal viewer. The algorithm used here computes the [[F...) |
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| + | [[Image:Whiten.png|thumb|right|400px|Fourier amplitude of a signal before and after whitening.]] | ||
'''Whiten''', reached from the [[Geopsy: Waveform Menu|Waveform menu]], whiten the signals in the active [[Geopsy: Signal Viewer|signal viewer]]. | '''Whiten''', reached from the [[Geopsy: Waveform Menu|Waveform menu]], whiten the signals in the active [[Geopsy: Signal Viewer|signal viewer]]. | ||
The algorithm used here computes the [[Fast Fourier Transform]] of the signals and removes the amplitude of each frequency sample, keeping only the phase information. This allows to limit the impact of large amplitude bursts to concentrate on the phase information. | The algorithm used here computes the [[Fast Fourier Transform]] of the signals and removes the amplitude of each frequency sample, keeping only the phase information. This allows to limit the impact of large amplitude bursts to concentrate on the phase information. | ||
| − | + | ''Whiten'' modifies the [[Geopsy: Temporary Signal|temporary signals]] in the active viewer. | |
See also: | See also: | ||
| − | [[Wikipedia:Whitening_transformation|Whitening]] | + | [[Wikipedia:Whitening_transformation|Whitening (Wikipedia)]] |
Revision as of 15:42, 10 March 2010
Whiten, reached from the Waveform menu, whiten the signals in the active signal viewer.
The algorithm used here computes the Fast Fourier Transform of the signals and removes the amplitude of each frequency sample, keeping only the phase information. This allows to limit the impact of large amplitude bursts to concentrate on the phase information.
Whiten modifies the temporary signals in the active viewer.
See also: Whitening (Wikipedia)
