Inverse Z Transforms and
Solving Difference
Equations
EE 341
Discrete Time Linear Systems
Fall 2007
Howard Jay Chizeck
University of Washington
Seattle, Washington
Ref: Text 11.6
; In-class Ch 11 notes pp. 17-22

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19,22-23 Oct 2007
2
For LTI systems, described by linear constant
coefficient difference equations
]
[
...
]
1
[
]
[
]
[
...
]
1
[
]
[
1
0
1
m
k
x
b
k
x
b
k
x
b
n
k
y
a
k
y
a
k
y
m
n
−
+
+
−
+
=
−
+
+
−
+
current and past outputs
Using Z Transforms To Solve Difference Equations
current and past inputs