Question

need problem 6.13 done.

12. The analog signal xa (t) = cos (100mt) + cos (120πt) led using natural sampling as shown in Fig. 6.18. The sampling rate used is f, -4 width of each pulse is τ = 0.5 ms. Write an analytical expression for the Fourier transform Xa (w) and sketch it. Find an analytical expression for X, () the Fourier transform of the naturally- sampled signal T, (t). a. c. Sketch the transform X, (w). 613. Repeat Problem 6.12 if zero-order hold sampling is used instead of natural sampling.

Answer 1

The analong Signal t e 肘 (b =.cos too 〔īt +cos izft Cs Scaned with CamScanner

au 10011 nofi is SPaliny between Pulse K-O Cs Scanned with CamScanner

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