[time-nuts] ADEV vs MDEV

Lux, Jim (337C) james.p.lux at jpl.nasa.gov
Sat Feb 6 04:45:10 UTC 2010




On 2/5/10 7:59 PM, "Pete Rawson" <peterawson at earthlink.net> wrote:

> Efforts are underway to develop a low cost DMTD apparatus with
> demonstrated stability measurements of 1E-13 in 1s. It seems that
> existing TI counters can reach this goal in 10s. (using MDEV estimate
> or 100+s. using ADEV estimate). The question is; does the MDEV tool
> provide an appropriate measure of stability in this time range, or is
> the ADEV estimate a more correct answer?
> ; this is NOT
> even close to the state-of-the-art, but can still be useful.
> 

Measurement performance of
1 sec 1E-13
10 sec 1e-14
100 sec 1e-15
1000 sec 1e-16

Would be quite impressive and useful. (and close to state of the art, and
certainly better than a adhoc lashup in the lab)




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