File:Analytic.svg

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Original file(SVG file, nominally 373 × 354 pixels, file size: 37 KB)

Summary[edit]

Description

A signal and the magnitude of its analytic signal, to demonstrate the envelope effect. I made it using Octave (that uses Gnuplot internally to output in SVG). Here is the code:

t=[0:.0001:3]; 
y1=-(1.2./t)-t+3;  
y1(y1<0)=0;
y2=sin(2*3*pi*t);
y3=y1.*y2;
hil=abs(hilbert(y3));

gset terminal svg enhanced fname "Times" fsize 20
gset output "analytic.svg"                                          
gset nokey                                                         
gset yrange [-1:1]                                                 

plot(t,y3,"3",t,hil,"1");
Date
Source Image:Analytic.png
Author original work by User:Omegatron, adapted to SVG by Alessio Damato
Other versions
Analytic.png

Licensing[edit]

I, the copyright holder of this work, hereby publish it under the following licenses:
GNU head Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.
w:en:Creative Commons
attribution share alike
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
You are free:
  • to share – to copy, distribute and transmit the work
  • to remix – to adapt the work
Under the following conditions:
  • attribution – You must attribute the work in the manner specified by the author or licensor (but not in any way that suggests that they endorse you or your use of the work).
  • share alike – If you alter, transform, or build upon this work, you may distribute the resulting work only under the same or similar license to this one.
This licensing tag was added to this file as part of the GFDL licensing update.
w:en:Creative Commons
attribution share alike
This file is licensed under the Creative Commons Attribution-Share Alike 2.5 Generic, 2.0 Generic and 1.0 Generic license.
You are free:
  • to share – to copy, distribute and transmit the work
  • to remix – to adapt the work
Under the following conditions:
  • attribution – You must attribute the work in the manner specified by the author or licensor (but not in any way that suggests that they endorse you or your use of the work).
  • share alike – If you alter, transform, or build upon this work, you may distribute the resulting work only under the same or similar license to this one.

You may select the license of your choice.

File history

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Date/TimeThumbnailDimensionsUserComment
current17:02, 4 June 2011Thumbnail for version as of 17:02, 4 June 2011373 × 354 (37 KB)Krishnavedala (talk | contribs)smoother version created in python.
22:11, 25 February 2007Thumbnail for version as of 22:11, 25 February 2007600 × 480 (38 KB)Alejo2083 (talk | contribs){{Information |Description=A signal and the magnitude of its analytic signal, to demonstrate the envelope effect. I made it using Octave (that uses Gnuplot internally to output in SVG). Here is the code: <pre> t=[0:.0001:3]; y1=-(1.2./t)-t+3; y1(y1<0)=
  • You cannot overwrite this file.

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