File:VariableFrequency.jpg

Summary

Description
English: A variable frequency (FM) plot vs. time.

Carrier frequency = 2000 Hz. Variable frequency = 1000 Hz

cos[2*pi*2000*t+cos(2*pi*1000*t)]

Created using MATLAB
Date 13 February 2007 (original upload date)
Source Transferred from en.wikipedia to Commons by Geo.plrd using CommonsHelper.
Author Stemperm at English Wikipedia
Category:Images with inappropriate JPEG compression#VariableFrequency.jpg

Licensing

Public domain This work has been released into the public domain by its author, Stemperm at English Wikipedia. This applies worldwide.
In some countries this may not be legally possible; if so:
Stemperm grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.
Category:PD-user#VariableFrequency.jpg

Original upload log

The original description page was here. All following user names refer to en.wikipedia.
  • 2007-02-13 20:26 Stemperm 533×367× (40742 bytes) A variable frequency (FM) plot vs. time. Carrier frequency = 2000 Hz Variable frequency = 1000 Hz cos[2*pi*2000*t+cos(2*pi*1000*t)] {{pd-self}}
Category:Spectrograms
Category:Images with inappropriate JPEG compression Category:PD-user Category:Spectrograms