Zero-Order Hold (Fixed-Point Blockset)

Implement a zero-order hold of one sample period

Library

Simulink Discrete and Fixed-Point Blockset Delays & Holds

Description

The Zero-Order Hold block samples and holds its input for the specified sample period. The block accepts one input and generates one output, both of which can be scalar or vector. If the input is a vector, all elements of the vector are held for the same sample period.

You specify the time between samples with the Sample time parameter. A setting of -1 means the Sample time is inherited.

This block provides a mechanism for discretizing one or more signals in time, or resampling the signal at a different rate. If your model contains multirate transitions, you must add Zero-Order Hold blocks between the fast-to-slow transitions. The sample rate of the Zero-Order Hold must be set to that of the slower block. For slow-to-fast transitions, use the Unit Delay block. For more information about multirate transitions, refer to the Simulink or the Real-Time Workshop documentation.

Data Type Support

The Zero-Order Hold block accepts real or complex signals of any data type, including fixed-point data types.

Parameters and Dialog Box

Sample time: Specify the time between samples. A value of -1 means the sample time is inherited.

Characteristics

Dimensionalized
Yes

Direct Feedthrough
Yes

Sample Time
Discrete

Scalar Expansion
No

Zero Crossing
No

Dimensionalized	Yes
Direct Feedthrough	Yes
Sample Time	Discrete
Scalar Expansion	No
Zero Crossing	No

Wrap To Zero Code Generation