Stereo System User Manual

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