WOLFRAM SYSTEMMODELER

UniformNoise

Noise generator with uniform distribution

Wolfram Language

In[1]:=
SystemModel["Modelica.Blocks.Noise.UniformNoise"]
Out[1]:=

Information

This information is part of the Modelica Standard Library maintained by the Modelica Association.

A summary of the common properties of the noise blocks is provided in the documentation of package Blocks.Noise. This UniformNoise block generates reproducible, random noise at its output according to a uniform distribution. This means that random values are uniformly distributed within the range defined by parameters y_min and y_max (see example NoiseExamples.UniformNoiseProperties). By default, two or more instances produce different, uncorrelated noise at the same time instant. The block can only be used if on the same or a higher hierarchical level, model Blocks.Noise.GlobalSeed is dragged to provide global settings for all instances.

Parameters (10)

samplePeriod

Value:

Type: Period (s)

Description: Period for sampling the raw random numbers

enableNoise

Value: globalSeed.enableNoise

Type: Boolean

Description: =true: y = noise, otherwise y = y_off

y_off

Value: 0.0

Type: Real

Description: y = y_off if enableNoise=false (or time

useGlobalSeed

Value: true

Type: Boolean

Description: = true: use global seed, otherwise ignore it

useAutomaticLocalSeed

Value: true

Type: Boolean

Description: = true: use automatic local seed, otherwise use fixedLocalSeed

fixedLocalSeed

Value: 1

Type: Integer

Description: Local seed (any Integer number)

startTime

Value: 0.0

Type: Time (s)

Description: Start time for sampling the raw random numbers

localSeed

Value:

Type: Integer

Description: The actual localSeed

y_min

Value:

Type: Real

Description: Lower limit of y

y_max

Value:

Type: Real

Description: Upper limit of y

Connectors (1)

y

Type: RealOutput

Description: Connector of Real output signal

Components (1)

globalSeed

Type: GlobalSeed

Description: Definition of global seed via inner/outer

Used in Examples (4)

UniformNoise

Modelica.Blocks.Examples.NoiseExamples

Demonstrates the most simple usage of the UniformNoise block

AutomaticSeed

Modelica.Blocks.Examples.NoiseExamples

Demonstrates noise with startTime and automatic local seed for UniformNoise

Distributions

Modelica.Blocks.Examples.NoiseExamples

Demonstrates noise with different types of distributions

UniformNoiseProperties

Modelica.Blocks.Examples.NoiseExamples

Demonstrates the computation of properties for uniformally distributed noise

Used in Components (1)

MotorWithCurrentControl

Modelica.Blocks.Examples.NoiseExamples.Utilities.Parts

Synchronous induction machine with current controller and measurement noise