[time-nuts] The Nature of Noise

paul swed paulswedb at gmail.com
Thu Jun 30 15:35:54 EDT 2016

I am about to get myself into a lot of trouble. If the noise is coherent in
some way then its not really noise anymore its a signal or its filtered in
some way as compared to C.
There you go I feel the hot emails on the way already.
Should be a good read.

On Thu, Jun 30, 2016 at 2:30 PM, Bob Stewart <bob at evoria.net> wrote:

> With my recent Cs problems, I've been wondering about the subject of noise
> generation and measurement.  Specifically, my question is this:  Let's say
> that I have 3 disciplined oscillators: A, B, and C.  So, I use the same
> 5370 to create a 1000 second ADEV and discover that the 1s noise value
> between A and B is low, while the 1s noise between A and C, as well as B
> and C is high.  Can I then say that both A and B are low noise devices?  Or
> is it possible that even though I'm measuring 1000 points, both A and B are
> high noise devices, but somehow are noisy in the same exact way, and it's
> actually C that's the low noise oscillator?
> Bob -
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