Tool and Viewer Quick Start

Open-Loop Nichols Plot

An alternative method for compensator design is the open-loop Nichols plot.  You can use the right-click menu and interactive graphics features to add, adjust, and remove compensator dynamics. This figure shows some of the features of the open-loop Nichols plot.

See Nichols Plot Design in Getting Started with the Control System Toolbox for an example of how to use Nichols plot design techniques.

Open-Loop Bode Diagram

Prefilter Bode Diagram