[time-nuts] Simulation of oscillator noise

[Stephan Sandenbergh]

Wolfgang,

A colleague of mine wrote this simulator based on a multirate filterbank:

http://ieeexplore.ieee.org/xpl/articleDetails.jsp?tp=&arnumber=5461653&queryText%3Dm+brooker+phase+noise

Since you are in the academia I'd assume you'll be able to access it?

Cheers,

Stephan.


On 28 November 2013 11:35, Wolfgang Wallner <wolfgang-wallner at gmx.at> wrote:

>
> Hello Time-Nuts community,
>
> I'm interested in the simulation of oscillator noise (especially in
> discrete event simulators).
> I came across this topic as part of the literature research for my
> master's thesis, and have to admit that I really underestimated how complex
> this topic is.
> In the past weeks, I have spent a lot of time reading about different
> kinds of variances, and I think I have a basic understanding now.
>
> I would like to ask you two questions:
>
> 1) Do you have any advice for me on what papers to read concerning
> oscillator noise simulation?
>
> I have read different kinds of papers up to now, but non of them was
> really what I was looking for:
>
> *) One of the papers I have read is "Accurate Clock Models for Simulating
> Wireless Sensor Networks" by Ferrari, Meier and Thiele.
> But I don't think their simple model is of any use, as they completely
> ignore the typical allan variance of oscillators.
> *) On the other hand, the paper "Achieving a Realistic Notion of Time in
> Discrete Event Simulation" by Gaderer, Nagy, Loschmidt and Sauter describes
> a very realistic model, but they keep the implementation details to
> themselves.
> *) What could be of use for my purpose could be "Simulation of Oscillator
> Noise" by Barnes, but as it is from 1988 it is quite dated.
>
> 2) Do you know any public data samples of the allan variance of a real
> oscillators?
>
> When I look in the data sheets of oscillator that I find on the internet,
> they only have precision estimates like 1ppm or 1ppb, but no detailed allan
> variance graphs.
>
> Best regards,
> Wolfgang Wallner
>
> 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.
>
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