File:AM signals.svg

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AM_signals.svg‎ (SVG file, nominally 800 × 600 pixels, file size: 40 KB)
Description This shows the variations in the modulated signal with changes in the percentage en:modulation.

Created using en:Gnuplot.
The commands are in the following sequence:

# 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
set terminal win
(Note: The carrier frequency = 10000Hz = 10KHz and modulating signal frequency = 100Hz)
Date 2005-12-28 (original upload date)
Source Originally from en.wikipedia; description page is/was here.
Author Original uploader was Krishnavedala at en.wikipedia
Permission
(Reusing this file)

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[edit] License information

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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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[edit] Original upload log

(All user names refer to en.wikipedia)

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

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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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This file contains additional information, probably added from the digital camera or scanner used to create or digitize it. If the file has been modified from its original state, some details may not fully reflect the modified file.
Width 800
Height 600
Image title Produced by GNUPLOT 4.0 patchlevel 0
Retrieved from "http://en.wikipedia.org/wiki/File:AM_signals.svg"
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