ECE 563 HW5 Solutions

D plots of xrect vs time showing that we now have just

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Unformatted text preview: of the next page. (c) Plots of the AM signal’s DFT (showing the center frequency of 12 kHz and a very large spike corresponding to the added carrier) and the AM time signal (showing that the message signal forms the AM signal’s upper envelope) are given in the second row of figures on the next page. (d) Plots of xrect vs. time (showing that we now have just the positive part of the AM signal) and the DFT magnitude vs. f (showing t...
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