Howtosignalprocessing
What does a root locus diagram?
A root locus diagram is a plot that shows how the eigenvalues of a linear (or linearized) system change as a function of a single parameter (usually the loop gain).
What is root locus with example?
Definition. The root locus of a feedback system is the graphical representation in the complex s-plane of the possible locations of its closed-loop poles for varying values of a certain system parameter. The points that are part of the root locus satisfy the angle condition.
Why do we draw root locus?
The root locus method allows us to determine the traces of the poles in the s-plane as any one coefficient of the closed-loop system (for example the controller gain) is varied.
