An AR(3) process {x(n)} is characterized by the autocorrelation sequence xx(0) = 1, xx(1) = , xx(2) = 1/8, and xx(3) = 1/64. (a) Use

An AR(3) process {x(n)} is characterized by the autocorrelation sequence γxx(0) = 1, γxx(1) = ½, γxx(2) = 1/8, and γxx(3) = 1/64.
(a) Use the Schur algorithm to determine the three reflection coefficients K1, K2, and K3.
(b) Sketch the lattice filter for synthesizing {x(n)} from a white noise excitation.