Generate white noise in Modelica (SystemModeler)

Question

I am trying to add measurement noise to a simulation. This is possible to do in for example Simulink but seems to be more difficult in Modelica and SystemModeler. Any ideas on how to do this?

Accepted Answer

An alternative is to use `Modelica.Blocks.Noise` to avoid writing external code yourself (added in Modelica Standard Library 3.2.2 released April 3, 2016; i.e. it would not have helped when the original question was asked).

One benefit of `Modelica.Blocks.Noise` is that the tricky questions with sampling, multiple seeds, etc are solved.

Generate white noise in Modelica (SystemModeler)

Solution

Problem