The first-order AR filter has a=0.9. When xi = sin(2?i/8), the value of y2 = ________(x.xx
Fill in the blank(s) with the appropriate word(s).
x0=sin(0)=0, x1=sin(?/4)=0.707, x2=sin(?/2)=1.
y0 = 0.
y1=0.9y0+0.707=0.707.
y2 = 0.9y1+1 = 0.64 +1= 1.64
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