How to create impulse noise? (e.g. interference in a cable plant)

I need to know how to create a signal that I can use to represent impulse noise in a cable plant. (e.g. interference) Then I need to know how to put this signal on an oscilloscope. I know this is a very broad question but anything will help! Thanks.

Answer 1

[Daniel kiracofe]

this reference might be a good start http://dsp-book.narod.ru/305.pdf