Carrier wave frequency spectrum

Thread starter mathman44
Start date Mar 21, 2010
Tags

Carrier Frequency Spectrum Wave Wave frequency

2 replies · 3K views · last reply Mar 22, 2010

mathman44

Thread starter
Mar 21, 2010

Homework Statement

Plot of an amplitude-modulated sine wave, y against t in ms from 0 to 1000, with a dashed envelope tracing the slowly varying amplitude over the carrier oscillations.

The Attempt at a Solution

The carrier wave is by inspection [tex]0.5 + cos(10\pi*t)[/tex] and the other would be [tex]1.5*sin(60\pi*t)[/tex].

I'm not entirely sure what we're supposed to graph for the second part, the frequency spectrum. Any help?

Last edited: Mar 21, 2010

Discussion

mmmboh

Mar 21, 2010

Hmm good question