Difference between revisions of "Amplitude modulation"

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(some pics demonstrating AM)
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*residual sideband modulation (modulation used for analog TV applications)
 
*residual sideband modulation (modulation used for analog TV applications)
 
*[[Quadrature_Amplitude_Modulation|QAM]]
 
*[[Quadrature_Amplitude_Modulation|QAM]]
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----
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''Links:''
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* [Wikipedia:Amplitude_modulation Amplitude Modulation Article on Wikipedia]

Revision as of 12:55, 27 September 2004

What is AM?

Amplitude Modulation is the done by modulating the Amplitude of an sinoid Carrier signal. The Carrier Signal has usually a higher Frequency than the modulating signal.

An Example

Carrier Signal in time domain Carrier Signal in frequency domain (to be added)
Modulating Signal in time domain Modulating Signal in frequency domain (to be added)
AM Signal AM Signal in frequency domain (to be added)

special kinds of AM

  • DSSC, double side band supressed carrier
  • SSB, single side band
  • residual sideband modulation (modulation used for analog TV applications)
  • QAM

Links:

  • [Wikipedia:Amplitude_modulation Amplitude Modulation Article on Wikipedia]