[time-nuts] Simulation of oscillator noise

[Azelio Boriani]

The link
http://tycho.usno.navy.mil/ptti/1987/Vol%2019_19.pdf
doesn't work, use instead:
http://tycho.usno.navy.mil/ptti/1987papers/Vol%2019_19.pdf

On Thu, Nov 28, 2013 at 2:03 PM, Azelio Boriani
<azelio.boriani at screen.it> wrote:
> From an old time-nuts post (by Magnus):
>
> try these
> http://tycho.usno.navy.mil/ptti/1987/Vol%2019_19.pdf
> http://horology.jpl.nasa.gov/papers/FlfmSimPtti.pdf
>
> and here
> http://libra.msra.cn/Publication/50096626/a-new-time-domain-model-of-precise-clock-noise
>
> On Thu, Nov 28, 2013 at 10:35 AM, 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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