Comparison of the Reduced Order Controllers
The reduced ordre controllers identified by the cor or cortr instructions may be compared in terms of their frequency responses as well as their closed loop sensitivity functions. The compcon function plots the following curves:
For the magnitude plots a linear scale is considered for the frequency and dB for the magnitude. The menu of the standard figures of MATLAB are enriched by barmenu module which gives more facilities to add the labels, legend, grid and etc. in the figuers.
A magnitude frequency response of a discrete time transfer function can also be ploted by mbode command.
See: Controller order reduction module .
(file compcon.htm)