Creating and Manipulating Models

Creating LTI Models

The functions tf, zpk, ss, and frd create transfer function models, zero-pole-gain models, state-space models, and frequency response data models, respectively. These functions take the model data as input and produce TF, ZPK, SS, or FRD objects that store this data in a single MATLAB variable. This section shows how to create continuous or discrete, SISO or MIMO LTI models with tf, zpk, ss, and frd.

Note    You can only specify TF, ZPK, and SS models for systems whose transfer matrices have real-valued coefficients.

Command Summary

Transfer Function Models