[time-nuts] Hadamard variance

Steve Rooke sar10538 at gmail.com
Fri Apr 10 21:29:45 UTC 2009


2009/4/11 Magnus Danielson <magnus at rubidium.dyndns.org>:
>> Point well taken. In that case we need a new deviation measurement
>> with 4 elements then :-)
>
> Will not help to fully cancel the effect as crystal drift is a function
> of log. See Vig on crystal oscillators at IEEE UFFC pages.
>
> One needs to identify the drift shape, estimates its parameters and then
> remove the estimated value from phase or frequency data.

I was not being serious Magnus, I did add the smiley.

73,
Steve
-- 
Steve Rooke - ZL3TUV & G8KVD & JAKDTTNW
Omnium finis imminet



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