Getting Started

Linear Model Representations

The Control System Toolbox supports the following model representations:

• State-space models (SS) of the form

where A, B, C, and D are matrices of appropriate dimensions, x is the state vector, and u and y are the input and output vectors.

• Transfer functions (TF), for example,

• Zero-pole-gain (ZPK) models, for example,

• Frequency response data (FRD) models, which consist of sampled measurements of a system's frequency response. For example, you can store experimentally collected frequency response data in an FRD model.

Note    The design of FRD models is a specialized subject that this guide does not address. See Frequency Response Data (FRD) Models under "Creating and Manipulating Models" in the online documentation for a discussion of this topic.

Linear Models

SISO Example: the DC Motor