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  3. suppose the sampling spectrum shown abovepoint spread function...

Question: suppose the sampling spectrum shown abovepoint spread function...

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Suppose the sampling spectrum shown above....point spread functionl. a. Show that for a given sampling period At and corresponding sampling frequency fr At FT Y .501-nAr) o(f -mf). int: the Fourier transform or frequency spectrum of a periodic signal is its complex exponential Fourier series.) b. Suppose the sampling function described above is used to digitize a signal within the necessary sampling criterion. Derive the expression for the point spread function of the matching ideal digital-to-analog converter needed to reconstruct the original signal from its digitized version. Plot out the point spread function with all pertinent features labeled.

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