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File:AM signals.svg

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Original file ‎(SVG file, nominally 800 × 600 pixels, file size: 40 KB)

Summary[edit]

Description
English: This shows the variations in the modulated signal with changes in the percentage en:modulation. (Note: The carrier frequency = 10000Hz = 10KHz and modulating signal frequency = 100Hz)
Date (original upload date)
Source Transferred from en.wikipedia to Commons.
Author Krishnavedala at English Wikipedia
Other versions

File:AM signals it.svg
SVG development
W3C icon.svg
 The source code of this SVG is valid.
Lissajous small.svg
 This vector image was created with gnuplot.

Gnuplot code

# describe the formula (x indicates time)
f(x) = (1 + m*sin(2*pi*100*x))*sin(2*pi*10000*x)
# set the terminal
set terminal svg size 800 600 dynamic enhanced
# set the output file
set output "am_signals.svg"
# set the 'default' axes properties 
set xlabel " "
set ylabel "Amplitude"
set grid
unset key
# start multiplot
set multiplot
# 50% Modulation
set origin 0,0.66
set title "50% Modulation"
set size 1,0.33
plot m=0.5, f(x)
# 100% Modulation
set origin 0,0.33
set size 1,0.33
set title "100% Modulation"
plot m=1, f(x)
# 150% Modulation"
set origin 0,0
set size 1,0.33
set xlabel "time"
plot m=1.5, f(x)
 
# end plotting
unset multiplot
unset output

Licensing[edit]

Krishnavedala at English Wikipedia, the copyright holder of this work, hereby publishes it under the following licenses:
w:en:Creative Commons
attribution share alike		 This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
Attribution: Krishnavedala at English Wikipedia
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  • 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.
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.

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Original upload log[edit]

The original description page was here. All following user names refer to en.wikipedia.

  • 2005-12-28 18:23 Krishnavedala 800×600×0 (41347 bytes) Created using [[Gnuplot]]

File history

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Date/TimeThumbnailDimensionsUserComment
current16:53, 2 May 2007Thumbnail for version as of 16:53, 2 May 2007800 × 600 (40 KB)Adambro{{Information |Description=This shows the variations in the modulated signal with changes in the percentage en:modulation. Created using en:Gnuplot.<br> The commands are in the following sequence: <pre> # describe t
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Metadata

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Image title Produced by GNUPLOT 4.0 patchlevel 0
Retrieved from "http://en.wikipedia.org/wiki/File:AM_signals.svg"