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Quantizer

Discretize input at a specified interval.

Library

Nonlinear

Description

The Quantizer block passes its input signal through a stair-step function so that many neighboring points on the input axis are mapped to one point on the output axis. The effect is to quantize a smooth signal into a stair-step output. The output is computed using the round-to-nearest method, which produces an output that is symmetric about zero

where y is the output, u the input, and q the Quantization interval parameter.

Data Type Support

A Quantizer block accepts and outputs signals of type double.

Parameters and Dialog Box

Quantization interval
The interval around which the output is quantized. Permissible output values for the Quantizer block are n*q, where n is an integer and q the Quantization interval. The default is 0.5.

Characteristics

Direct Feedthrough
 Yes
Sample Time
 Inherited from driving block
Scalar Expansion
 Of parameter
Vectorized
 Yes
Zero Crossing
 No


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