代码：

% All-Pole IIR filter to Lattice structure filter

a = [1, 13/24, 5/8, 1/3]; K = dir2latc(a)

% To Check

%[delta, n] = impseq(0, 0, 3);

format long;

%hdirect = filter(1, a, delta)

%hlattice = latcfilt(K, delta)

　　运行结果：

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