On 11/28/13 1:35 AM, Wolfgang Wallner wrote:
Hello Time-Nuts community,
I'm interested in the simulation of oscillator noise (especially in discrete
event simulators).
PS: When I use the word oscillator I mean the cheap quartz oscillators as found
in typical consumer electronic stuff.
PPS: I'm not sure if this mailing-list is the right place to ask my questions,
as simulation is not listed in your mailing-list topics. Sorry if this mail is
off-topic.
I think it's the right place.. There's plenty of Allan deviation plots
and data here for just about any kind of oscillator you care to name.
One way to generate realistic spectra is to take white noise from a
random number generator and run it through a filter which has the right
shape (e.g. 1/f, etc.).
Essentially this is implementing the Leeson model explicitly.
A year or so ago, I was looking for a similar thing to simulate human
heartbeats (which have a 1/f characteristic, just like other
oscillators).
http://www.febo.com/pipermail/time-nuts/2013-February/074505.html
see also http://paulbourke.net/fractals/noise/
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