Physics:Waterfall plot: Difference between revisions
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{{Short description|Data visualization technique}} | {{Short description|Data visualization technique}} | ||
{{distinguish|text=[[Waterfall chart]]s, 2D floating-column diagram showing increases and decreases.}} | |||
{{redirect|Waterfall display|the hardware|Waterfall display (hardware)}} | |||
[[File:SDRpp FM subcarriers.png|thumb|300px|right|FM station broadcasting at 91.7 MHz on seen on SDRpp spectrogram]] | [[File:SDRpp FM subcarriers.png|thumb|300px|right|FM station broadcasting at 91.7 MHz on seen on SDRpp spectrogram]] | ||
'''Waterfall plots''' are often used to show how two-dimensional phenomena change over time.<ref>{{cite web |last1=Glen |first1=Stephanie |title=Waterfall Plot / Chart: Definition, Types & Examples |url=https://www.statisticshowto.com/waterfall-plot/ |website=statisticshowto.com |access-date=13 October 2021}}</ref> A three-dimensional ''spectral waterfall plot'' is a plot in which multiple curves of data, typically [[Spectrum|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 [[Physics:Rotational speed|rotational speed]]. Waterfall plots are also often used to depict ''[[Spectrogram|spectrogram]]s'' or ''cumulative spectral decay''{{Definition needed|date=December 2021}} (CSD). | '''Waterfall plots''' are often used to show how two-dimensional phenomena change over time.<ref>{{cite web |last1=Glen |first1=Stephanie |title=Waterfall Plot / Chart: Definition, Types & Examples |url=https://www.statisticshowto.com/waterfall-plot/ |website=statisticshowto.com |date=11 January 2018 |access-date=13 October 2021}}</ref> A three-dimensional ''spectral waterfall plot'' is a plot in which multiple curves of data, typically [[Spectrum|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 [[Physics:Rotational speed|rotational speed]]. Waterfall plots are also often used to depict ''[[Spectrogram|spectrogram]]s'' or ''cumulative spectral decay''{{Definition needed|date=December 2021}} (CSD). | ||
==Uses== | ==Uses== | ||
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* The [[Engineering:Latency (audio)|delayed response]] from a [[Engineering:Loudspeaker|loudspeaker]] or listening room produced by [[Impulse response|impulse response]] testing or [[Engineering:MLSSA|MLSSA]]. | * The [[Engineering:Latency (audio)|delayed response]] from a [[Engineering:Loudspeaker|loudspeaker]] or listening room produced by [[Impulse response|impulse response]] testing or [[Engineering:MLSSA|MLSSA]]. | ||
* Spectra at different engine speeds when testing engines. | * Spectra at different engine speeds when testing engines. | ||
[[Image:Aaronia Spectrum Analyzer Software.jpg|thumb|The upper half of this diagram shows the frequency spectrum of a modern [[ | [[Image:Aaronia Spectrum Analyzer Software.jpg|thumb|The upper half of this diagram shows the frequency spectrum of a modern [[Switched-mode power supply|switching power supply]] which employs [[Spread spectrum|spread spectrum]]. The lower half is a waterfall plot showing the variation of the frequency spectrum over time during the power supply's heating up period.]] | ||
[[Image:Waterfall plot of a whistle.png|thumb|center|500px|Spectrogram and 3 styles of waterfall plot of a whistled sequence of 3 notes vs time]] | [[Image:Waterfall plot of a whistle.png|thumb|center|500px|Spectrogram and 3 styles of waterfall plot of a whistled sequence of 3 notes vs time]] | ||
Latest revision as of 23:20, 11 May 2026
Short description: Data visualization technique
Waterfall plots are often used to show how two-dimensional phenomena change over time.[1] A three-dimensional spectral waterfall plot is a 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 rotational speed. Waterfall plots are also often used to depict spectrograms or cumulative spectral decay[definition needed] (CSD).
Uses
- The results of spectral density estimation, showing the spectrum of the signal at successive intervals of time.
- The delayed response from a loudspeaker or listening room produced by impulse response testing or MLSSA.
- Spectra at different engine speeds when testing engines.
See also
References
- ↑ Glen, Stephanie (11 January 2018). "Waterfall Plot / Chart: Definition, Types & Examples". https://www.statisticshowto.com/waterfall-plot/.
External links
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