Waterfall plot
This article is about the type of 3D graph representation. For the 2D floating column diagram showing increases and decreases, see waterfall chart.
A waterfall plot is a three-dimensional plot in which multiple curves of data, typically spectra, are displayed simultaneously. Typically the curves are staggered both across the screen and vertically, with 'nearer' curves masking the ones behind. The result is a series of "mountain" shapes that appear to be side by side. The waterfall plot is often used to show how two-dimensional information changes over time or some other variable such as rpm. The term "waterfall plot" is sometimes used interchangeably with "spectrogram" or "Cumulative Spectral Decay" (CSD) plot.
Uses
Waterfall plots are often used to show the:
- results of spectral density estimation, showing the spectrum of the signal at successive intervals of time.
- delayed response from a loudspeaker or listening room produced by impulse response testing or MLSSA.
- spectra at different engine speeds when testing engines.
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Spectrogram and 3 styles of waterfall plot of a whistled sequence of 3 notes vs time
See also
External links
This article is issued from Wikipedia - version of the 8/18/2015. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.