Unstable Poles
•
Example 16.3
•
•
b
opt
(
P
4
) will be small if |
P
4
(j
w
)| is small around the frequency of
w
=1
(the modulus of the right-half plane pole).
•
•
•
•
Note that
b
opt
(P
4
)
®
0.707 as
K
®
¥
. This is because |
P
4
(j
w
)| is very
large around the the frequency of the modulus of the right-half plane
pole as
K
®
¥
.