[time-nuts] Zero dead time and average frequency estimation

paul swed paulswedb at gmail.com
Tue Feb 2 00:08:02 UTC 2010


Unfortunately can't download these

On Mon, Feb 1, 2010 at 6:06 PM, Magnus Danielson <magnus at rubidium.dyndns.org
> wrote:

> Bruce,
>
> Bruce Griffiths wrote:
>
>> There are some excellent papers on the subject; start with
>>>> the one by Rubiola:
>>>>
>>>>
>>>> <
>>>> http://www.femto-st.fr/~rubiola/pdf-articles/journal/2005rsi-hi-res-freq-counters.pdf>
>>>>
>>>> There are additional papers (perhaps Bruce can locate them).
>>>>
>>>
>>> In particular, there is one paper that corrects some mistakes of Rubiola,
>>> Australian if I remember correctly.
>>>
>> Yes, the paper by Dawkins, McFerran and Luiten:
>>
>> http://ieeexplore.ieee.org/Xplore/login.jsp?url=http%3A%2F%2Fieeexplore.ieee.org%2Fiel5%2F4318993%2F4318994%2F04319178.pdf%3Farnumber%3D4319178&authDecision=-203<
>> http://ieeexplore.ieee.org/Xplore/login.jsp?url=http%3A%2F%2Fieeexplore.ieee.org%2Fiel5%2F4318993%2F4318994%2F04319178.pdf%3Farnumber%3D4319178&authDecision=-203>
>>
>>
>
> Yes, many thanks.
>
> This article by J.J. Snyder, "An Ultra-High Resolution Frequency Meter",
>  FCS #35, is very useful:
> http://www.ieee-uffc.org/main/publications/fcs/proceed/1981/s8110464.pdf
>
> It describes an hardware implementation of a zero dead-time counter
> (crude!) implementing the algorithm. It performs the averaging in the way I
> described earlier. The above paper by Snyder is the inspiration to the
> original MDEV paper published in for the same conference and directly
> following:
>
> David W. Allan and James A. Barnes, "A modified Allan Variance with
> increased oscillator characterization ability", FCS #35.
> http://www.ieee-uffc.org/main/publications/fcs/proceed/1981/s8110470.pdf
>
> From the same conference exists a summary paper of Howe, Allan and Barnes
> on measurements, spending time on comparing over-lapping and non-overlapping
> estimators, effective use of data, DF/EDF, chi-square etc. etc.
>
> Cheers,
> Magnus
>
>
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