Question: 3 = 40 1 40 3.1 Consider the signal, m(t), defined as follows: sin (107( - )) m(t) = 4 cos(1007) at - Sketch t

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Question 3 40 1 40 3 1 Consider The Signal M T Defined As Follows Sin 107 M T 4 Cos 1007 At Sketch T 1 (368.21 KiB) Viewed 35 times

Question: 3 = 40 1 40 3.1 Consider the signal, m(t), defined as follows: sin (107( - )) m(t) = 4 cos(1007) at - Sketch the magnitude spectrum of m(t) - be sure to label your plot correctly and explain your logic. Hint: The Fourier Transform of a sinc(t) is rect(f) where sinc(x) 4 sin(72) and rect(r) is a rectangular pulse centred about zero with unit amplitude and width. (30%] 3.2 The signal m(t), from part 3.1, is used to modulate a 100 kHz carrier using Full-AM modulation. Sketch the magnitude spectrum of the resulting signal. [20%] 3.3 If a USB-SSB-AM modulator were used instead sketch the magnitude spectrum of the resulting signal. [10%]