compute the first three unit-sample response values h0 = ________ , h1 = ________ , and h2 = _____ (Use precision x.xx).
For the difference equation given by
yi = -0.5yi-1 + 0.25yi-2 +0.5xi + 0.5xi-1
hi = yi when xi = di. Zero initial conditions make yi=0 for i<0.
h0 = -0.5y-1 + 0.25y-2 +0.5d0 + 0.5 d-1 = 0.5(1) = 0.50
h1 = -0.5ho + 0.25y-1 +0.5d1 + 0.5 d0 = -0.5(0.5)+0.5 = 0.25
h2 = -0.5h1 + 0.25h0 +0.5d2 + 0.5 d1 = -0.5(0.25) + 0.25(0.5) = 0
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