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Lecture 16: Bode Diagram
•
Bode Diagram
•
Section 7.8
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Bode Diagram
•
Another graphical representation of open-loop frequency response
–
Magnitude plot: plot of 20 log |
G
(
e
j
!
T
)| as a function of
!
–
Phase plot: plot of
Å
G
(
e
j
!T
) as a function of log(
!
)
•
Plotted from experimental data or from analytical expression of
G
(
z
)
•
Compared with the Bode plot of a continuous system
G
(
s
)
•
Approximation using straight lines

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