Motorola DSP96002 User Manual page 549

B.1.18 All Pole IIR Lattice Filter
A (in)
Coefficient And State Variable Storage
R0
x: k1 k2 k3
M0=2 (mod 3)
B-30
ALL POLE IIR LATTICE FILTER
-k
-1
Z
S3
R4
y: s3 s2 s1
M4=2 (mod 3)
SINGLE SECTION
t
k
-k
-1
Z
S' S
DSP96002 USER'S MANUAL
k2 k1
-k2 -k1
-1
Z
S2 S1
EQUATIONS:
t'
t'=t-k * s
s'=s+k * t'
t' t
A (out)
-1
Z
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