Unstable Poles
• Example 16.3
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• bopt(P4) will be small if |P4(jw)| is small around the frequency of w=1 (the modulus of the right-half plane pole).
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• Note that bopt(P4)®  0.707 as  K ®  ¥. This is because |P4(jw)| is very large around the the frequency of the modulus of the right-half plane pole as K ®  ¥.