Any type of noise (for example pink noise) can be generated either programmatically or with the help of Simulink blocks.
If you are looking for a programmatic way to incorporate pink noise into your script, I would recommend going through the following link which talks abut the same:
If a simulink block is what you are looking for to generate pink noise there is a block which helps to generate colored noise and pink-noise is one of the options. The following link explains this block and how it can be configured:
Hope this helps!
