Digital Signal Processing Reference
In-Depth Information
0 . 5 ) 3 ].
2.27
Find the inverse z transform of H(z)
=
0 . 6 z/ [ (z
+
0 . 1 )(z
+ 0 . 5 ) 2 .
2.28
Find f(n) from F(z)
=
(z
+ 0 . 3 )/z(z
+ 0 . 5 )/(z 2
2.29
Find the inverse z transform of X(z)
=
z(z
+ 0 . 6 z
+ 0 . 5 ) .
Find the inverse z transform of X(z)
=
(z
+
0 . 2 )/ [ (z
+
0 . 5 )(z
1 )
2.30
(z
0 . 1 ) ].
Find the inverse z transform of Y(z 1 )
(z 1
+ 0 . 4 z 2 )/( 1 +
z 1
2.31
=
+
0 . 25 z 2 ) .
2.32
Find the inverse z transforms of the following two transfer functions:
z
+ 0 . 6
H 1 (z)
=
(z 2
+ 0 . 8 z
+ 0 . 5 )(z
0 . 4 )
(z
+ 0 . 4 )(z
+ 1 )
H 2 (z)
=
(z
0 . 5 ) 2
+ 0 . 5 ) 2 (z 2
2.33
Find the inverse z transform of H(z)
=
z/ [ (z
+ 0 . 25 ) ].
1 )(z 2
2.34
Find the inverse z transform of H(z)
=
[0 . 1 z(z
+
1 ) ] / [ (z
z
+
0 . 9 ) ].
+ 0 . 5 )/z(z 2
2.35
Find the inverse z transform of F(z)
=
(z
+ 0 . 2 z
+ 0 . 02 ) .
2.36
Find the inverse z transform of the following two functions:
1 + 0 . 1 z 1
+ 0 . 8 z 2
G 1 (z)
=
( 1
+
z 1 )
0 . 2 z 2
+
z
+
1 . 0
G 2 (z)
=
(z
+ 0 . 2 )(z
+ 0 . 1 )
1 . 35 z 1
0 . 28 z 2
Find the inverse z transform of X(z)
=
( 3 . 0
+
+
+
2.37
0 . 03 z 3 )/( 1 . 0
0 . 5 z 1
0 . 06 z 2 ) .
+
+
= 1 / [1 2 r( cos θ)z 1
2.38
Show that
the inverse z transform of H(z)
+
r 2 z 2 ]isgivenby
r n sin (n
+
1
h(n)
=
u(n)
sin θ
a) 3
2.39
Show that the inverse z transform of H(z)
=
z/(z
is given by
1 )a n 2
2
n(n
h(n)
=
u(n
2 )
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