The Cyber-Spy.Com Usenet Archive Feeds Directly
From The Open And Publicly Available Newsgroup
This Group And Thousands Of Others Are Available
On Most IS NNTP News Servers On Port 119.
Cyber-Spy.Com Is NOT Responsible For Any Topic,
Opinions Or Content Posted To This Or Any Other
Newsgroup. This Web Archive Of The Newsgroup And
Posts Are For Informational Purposes Only.
From: "Mike Engelhardt"
Subject: Re: Aylward, Engelhardt: Noise in a transient sim?
Date: 18 Oct 2002 18:59:40 GMT
Reply-To: "Mike Engelhardt"
X-Newsreader: Microsoft Outlook Express 6.00.2600.0000
Mike wrote :
> Have you ever given any thought to adding a transient
> noise simulation capability to SPICE?
LTspice has random noise generators in behavioral modeling,
but aren't in any way related to physical solid state device
noises. The random noises in LTspice are used for (i)
insertion inside a feedback loop to extract the AC response
from a time domain simulation by Fourier Analysis and (ii)
to model certain SMPS products that use a spread spectrum
technique to blur a coherent noise spike out to broad band,
apparently stochastic, noise(to help meet FCC regulations
in various applications).
> Any ideas what's involved? How complicated would it be?
It's not that complicated, but I prefer the traditional
methods that semi-analytically deal with noise density or
as in certain RF simulators also handle mixed down/up
Go Back To The Cyber-Spy.Com
Usenet Web Archive Index Of
The sci.electronics.design Newsgroup