(a) Using the results of Problem D.1, derive Equation (D.28) with |f| = f d . (b) Compare Equations (D.28) and (D.23) for a square

(a) Using the results of Problem D.1, derive Equation (D.28) with |δ̅f̅| = f_d.
(b) Compare Equations (D.28) and (D.23) for a square wave-modulated FM signal with deviation f_d. by letting |δ̅f̅| = f_d and B = 2f_d for f_d = 5 and 10 for signal-to-noise ratios of A² / N₀B = 1,10, 100, 1000. Plot v and δ̅̅v versus A² / N₀B.