## Bode magnitude and phase analysis

Bode analysis comprises graphical representations of
magnitude and phase information, both plotted as a function of frequency
(*w*). Bode plots clearly illustrate the relative stability of a system.
Gain and phase margin requirements of a closed-loop system are often defined in
terms of Bode plots.

Bode plots have a variety of applications, including:

•
Analysis of system closed-loop performance characteristics

•
Determination of resonant frequencies and maximum power amplitude

Bode plots can also be used for the specification and design of compensators.