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The block diagram of C/D and D/C system is shown below. p(t) DT LTI System CT lowpass Filter xc(t) *p () Conversion of Xin] impulse train to sequence Ha (1) ya In Conversion of yp (t) sequence to impulse train y (t) 00 60 2 2 A CT signal x.(t) has bilateral bandwidth of 10 kHz and its frequency spectrum is shown below. 1 w (rad/s) - WM 0 WM in=-00 a) (2) What is the value of wm (in rad/s)? If x.(t) is sampled using p(t) = 2-.(t - nT) where I = 50 us. b) (2) If the time duration of x (t) is one second, specify the total number of sample points contained in xa[n]. c) (2) Sketch the frequency spectrum of xy(t). Show important values. d) (2) Sketch the frequency spectrum of xa[n] for 25 31. Show important values.