File:Time coherence.gif
Summary
| Description |
English: Temporal coherence is a measure of how long is the interval where a oscillating signal can be approximated as a single sinusoidal. Beyond the "coherence time" one has to pick a different single sinusoidal to approximate the signal. |
| Date | |
| Source | https://twitter.com/j_bertolotti/status/1123906335756693504 |
| Author | Jacopo Bertolotti |
| Permission (Reusing this file) |
https://twitter.com/j_bertolotti/status/1030470604418428929 |
Mathematica 11.0 code
p1 = Table[
Legended[Show[
Plot[Sin[t], {t, \[Tau] - 20, \[Tau]}, PlotStyle -> {Red}]
,
Plot[Sin[1 t + 0.0004 t^2], {t, \[Tau] - 20, \[Tau]}, PlotStyle -> {Purple}]
,
Graphics[{Black,
Disk[{\[Tau], Sin[1 \[Tau] + 0.0004 \[Tau]^2]}, Scaled[{0.02, 0.02 GoldenRatio}]] }]
, PlotRange -> {{\[Tau] - 20, \[Tau] + 2}, {-1.1, 1.1}},
Axes -> False]
, LineLegend[{Red, Purple}, {"Infinite coherence\n time signal", "Finite coherence\n time signal"}]
]
, {\[Tau], 10, 90, 0.2}];
ListAnimate[p1]
Licensing
I, the copyright holder of this work, hereby publish it under the following license:
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This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication. |
| The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.
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