Amplitude modulation: Difference between revisions

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Changing the [[amplitude]] of a [[carrier  wave|carrier wave]] by some means so that the  resultant waveform transmits a [[signal]] conveying information.<br/> For example, if the carrier wave with [[angular frequency]] &#x003c9; is cos(&#x003c9;''t''), the corresponding  amplitude-modulated signal is  <blockquote>[[File:ams2001glos-Ae19.gif|link=|center|ams2001glos-Ae19]]</blockquote> where ''g''(''t'') is a function that varies more slowly with time than does the carrier wave. <br/>''Compare''  [[frequency modulation]].
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== amplitude modulation ==
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<div class="definition"><div class="short_definition">Changing the [[amplitude]] of a [[carrier wave]] by some means so that the  resultant waveform transmits a [[signal]] conveying information.</div><br/> <div class="paragraph">For example, if the carrier wave with [[angular frequency]] &#x003c9; is cos(&#x003c9;''t''), the corresponding  amplitude-modulated signal is  <div class="display-formula"><blockquote>[[File:ams2001glos-Ae19.gif|link=|center|ams2001glos-Ae19]]</blockquote></div> where ''g''(''t'') is a function that varies more slowly with time than does the carrier wave. <br/>''Compare''  [[frequency modulation]].</div><br/> </div>
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Latest revision as of 16:27, 7 November 2023

Changing the amplitude of a carrier wave by some means so that the resultant waveform transmits a signal conveying information.
For example, if the carrier wave with angular frequency ω is cos(ωt), the corresponding amplitude-modulated signal is
ams2001glos-Ae19
where g(t) is a function that varies more slowly with time than does the carrier wave.
Compare frequency modulation.


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