[sdiy] Popcorn Noise Generator?

[Magnus Danielson]

From: Ian Fritz <ijfritz at earthlink.net>
Subject: Re: [sdiy] Popcorn Noise Generator?
Date: Sun, 10 Jul 2005 10:12:18 -0600
Message-ID: <6.2.1.2.2.20050710100757.03369630 at mail.earthlink.net>

> At 02:19 PM 7/9/05, Magnus Danielson wrote:
> >From: Ian Fritz <ijfritz at earthlink.net>
> >Subject: Re: [sdiy] Popcorn Noise Generator?
> >Date: Sat, 09 Jul 2005 14:02:53 -0600
> >Message-ID: <6.2.1.2.2.20050709140000.033685a0 at mail.earthlink.net>
> >
> > > At 10:20 AM 7/9/05, Magnus Danielson wrote:
> > >
> > > >We are talking random processes here, it's all random but the slope of the
> > > >powerlaw differ between the processes, that's about it.
> > >
> > > Right. I was just trying to say that the geiger counter approach will not
> > > give you the same spectrum as popcorn noise has.
> > >
> > > Why does it always seem that you try to make huge arguments about minor
> > > semantic points?  (Now you are going to give me a long discourse on why it
> > > isn't minor, right?)
> > >
> > > :-)
> >
> >Well, I guess I'm just picky at times, but then again, you get back at me when
> >I am sloopy, so in the end we pull more or less even. Add a bit of languague
> >barrier and we unfortunatly have a little heated argument about how to 
> >park the
> >bicycles. ;O)
> >
> >I think we contribute to the knowledge in the end of the day, it is more about
> >how we discuss things. I always enjoy the discussions going on anyway.
> 
> Yes, it is a good discussion.  I haven't thought /learned enough about 
> noise processes and spectra.  The popcorn noise question is quite 
> fascinating, but it is hart to get much good fundamental info on it from 
> the net.

I happend to have several reasons to care and need to understand noise.

One book I do recommend is the "Low-Noise Electronic System Design" by
C. D. Motchenbacher and J. A. Connelly. This is my main reference on noise and
noise processes in general, and when I wanted to remind myself about what
popcorn noise is (or any other type of noise for that matter) I consult this
book. This book is often referenced by other good literature, which is a good
indication.

In addition, there are some good texts about phase noise from NIST, which have
loads of information on the net if you care to look around in the right corners
of their website. In one of the NIST publications on a low-noise amplifier they
refered to an earlier book of Motchenbacher and Connelly.

> >Now, where's that beer?
> 
> Went out with friends for a couple myself yesterday.  Temps in the 100's 
> (F) here lately.

We are a bit chillier here, but still hot enought and high humidity too.

Cheers,
Magnus - just in after eating woffles outside in the garden - a ultra-rare event