SignalGenerator-Gaussian Noise

Navigation:  Library > Signal > Sources >

SignalGenerator-Gaussian Noise

Previous pageReturn to chapter overviewNext page

Library

Signal\Sources

Implementations

frequency_limited_FOH

frequency_limited_ZOH

unlimited

Use

Domains: Discrete, Continuous. Size: 1-D. Allowed in: Block Diagrams.

Description - frequency_limited_FOH

This model generates a gaussian noise signal with gaussian distribution and variance 1 and random seed s. The noise is multiplied by the parameter amplitude.

output = amplitude*gauss(1,seed);

 

The noise signal is limited to a maximum frequency, which can be adjusted (parameter). Values in-between two noise samples are interpolated (first order hold).

Interface - frequency_limited_FOH

Outputs

Description

output

 

Parameters

 

seed

amplitude

frequency

random seed

-amplitude <= output <= +amplitude

frequency band of the noise

 

Description - frequency_limited_ZOH

This model generates a gaussian noise signal with gaussian distribution and variance 1 and random seed s. The noise is multiplied by the parameter amplitude.

output = amplitude*gauss(1,seed);

 

The noise signal is limited to a maximum frequency, which can be adjusted (parameter). Values in-between two noise samples are interpolated (first order hold).

Interface - frequency_limited_ZOH

Outputs

Description

output

 

Parameters

 

seed

amplitude

frequency

random seed

-amplitude <= output <= +amplitude

frequency band of the noise

 

Description - unlimited

This model generates a gaussian noise signal with gaussian distribution and variance 1 and random seed s. The noise is multiplied by the parameter amplitude.

output = amplitude*gauss(1,seed);

 

The noise signal has no frequency limitation.

Note

It is advised only to use this implementation with fixed step integration methods such as Euler and Runge Kutta 2/4. If you run this implementation with a variable step integration method, simulations may get very slow!

Interface - unlimited

Outputs

Description

output

 

Parameters

 

seed

amplitude

random seed

-amplitude <= output <= +amplitude

Limitations

seed must be a number in the region <0,65000>.