Simulink®

Discrete Zero-Pole

Model system defined by zeros and poles of discrete transfer function

Library

Discrete

Description

The Discrete Zero-Pole block models a discrete system defined by the zeros, poles, and gain of a z-domain transfer function. This block assumes that the transfer function has the following form

where Z represents the zeros vector, P the poles vector, and K the gain. The number of poles must be greater than or equal to the number of zeros (n ≥ m). If the poles and zeros are complex, they must be complex conjugate pairs.

The block displays the transfer function depending on how the parameters are specified. See Zero-Pole for more information.

Data Type Support

The Discrete Zero-Pole block accepts and outputs real signals of type double.

Parameters and Dialog Box

Zeros

The matrix of zeros. The default is [1].

Poles

The vector of poles. The default is [0 0.5].

Gain

The gain. The default is 1.

Sample time

The time interval between samples. See Specifying Sample Time.

The State Attributes pane of this block pertains to code generation and has no effect on model simulation. See Block State Storage and Interfacing in the Real-Time Workshop^® User's Guide for more information.

Characteristics

Discrete Transfer Fcn

Display