sin 1000rt %3D Three signals a (t) = 3 cos 2000at, x (t) Te(t) = 55 Toward this end, the signal Ta (t) is multiplied by carrier and sin 2000rt オt are to be frequency division multiplexed. cos wat = cos 10, 000nt. The carrier signals %3D cos wt and cos wt are to be selected in such a way that there is a guard band of 100 Hz in between the modulated spectra. (a) Find the frequencies w, and w..

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Three signals a(t) = 3 cos 2000rt, x, (t) =
sin 1000rt
and
Te(t) 5 sin 2000xt
Toward this end, the signal a (t) is multiplied by carrier
are to be frequency division multiplexed.
at
cos 10,000rt. The carrier signals
cos wat
cos wt and cos w.t are to be selected in such a way that there
is a guard band of 100 Hz in between the modulated spectra.
(a) Find the frequencies w, and w.-
(b) Sketch the spectra of the frequency division multiplexed signal.
List all the appropriate values on both axes of your sketch.
Transcribed Image Text:Three signals a(t) = 3 cos 2000rt, x, (t) = sin 1000rt and Te(t) 5 sin 2000xt Toward this end, the signal a (t) is multiplied by carrier are to be frequency division multiplexed. at cos 10,000rt. The carrier signals cos wat cos wt and cos w.t are to be selected in such a way that there is a guard band of 100 Hz in between the modulated spectra. (a) Find the frequencies w, and w.- (b) Sketch the spectra of the frequency division multiplexed signal. List all the appropriate values on both axes of your sketch.
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