how to have a wide band signal source?

[Gundam]

Hi, I would like to generate a signal source without period and which
covers wide frequency band. It is like a noise-like wave form but I
can control the frequency band. I can not make it by sin source, piece
wise linear source, dc source. Can anyone give me some idea?
Appreciate it.

 

[Andrew Beckett]

On Fri, 20 Jul 2007 22:18:50 -0000, Gundam <sfyen2004@gmail.com> wrote:

Hi, I would like to generate a signal source without period and which
covers wide frequency band. It is like a noise-like wave form but I
can control the frequency band. I can not make it by sin source, piece
wise linear source, dc source. Can anyone give me some idea?
Appreciate it.

What kind of analysis are you expecting to simulate in? You could use some
kind of impulse, followed by a filter to band-limit it (using a svcvs, for
example, which is a laplace voltage controlled voltage source). But that's
pretty nasty...

Andrew.
--
Andrew Beckett
Senior Solution Architect
Cadence Design Systems, UK.