Amplitude modulation

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amplitude modulation[edit | edit source]

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.


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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