Amplitude modulation: Difference between revisions

From Glossary of Meteorology
imported>Perlwikibot
(Created page with " {{TermHeader}} {{TermSearch}} <div class="termentry"> <div class="term"> == amplitude modulation == </div> <div class="definition"><div class="short_definition">Changi...")
 
m (Rewrite with Template:Term and clean up)
 
(3 intermediate revisions by one other user not shown)
Line 1: Line 1:
 
{{Term
 
|Display title=amplitude modulation
{{TermHeader}}
|Definitions={{Definition
{{TermSearch}}
|Num=1
 
|Meaning=
<div class="termentry">
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]].
  <div class="term">
}}
== amplitude modulation ==
}}
  </div>
 
<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>
</div>
 
{{TermIndex}}
{{TermFooter}}
 
[[Category:Terms_A]]

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.


Retrieved from "https://glossarystaging.ametsoc.net/w/index.php?title=Amplitude_modulation&oldid=27172"
Powered by MediaWiki
Powered by WikiTeq
Powered by Semantic MediaWiki
Copyright 2024 American Meteorological Society (AMS). For permission to reuse any portion of this work, please contact permissions@ametsoc.org. Any use of material in this work that is determined to be “fair use” under Section 107 of the U.S. Copyright Act (17 U.S. Code § 107) or that satisfies the conditions specified in Section 108 of the U.S.Copyright Act (17 USC § 108) does not require AMS’s permission. Republication, systematic reproduction, posting in electronic form, such as on a website or in a searchable database, or other uses of this material, except as exempted by the above statement, require written permission or a license from AMS. Additional details are provided in the AMS Copyright Policy statement.