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WOLFRAM SYSTEM MODELER

NormalNoise

Noise generator with normal distribution

Wolfram Language

In[1]:=

SystemModel["Modelica.Blocks.Noise.NormalNoise"]

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 NormalNoise block generates reproducible, random noise at its output according to a normal distribution. This means that random values are normally distributed with expectation value mu and standard deviation sigma. (see example Examples.Noise.NormalNoiseProperties). 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: Sets y = y_off if enableNoise=false (or time<startTime, see below)
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
mu	Value: 0 Type: Real Description: Expectation (mean) value of the normal distribution
sigma	Value: Type: Real Description: Standard deviation of the normal distribution