[time-nuts] question Alan deviation measured with Timelab and counters

Magnus Danielson magnus at rubidium.dyndns.org
Fri Feb 6 15:24:12 EST 2015


Hej Attila,

On 02/06/2015 01:22 PM, Attila Kinali wrote:
> Moin Magnus,
>
> On Wed, 21 Jan 2015 07:07:54 +0100
> Magnus Danielson <magnus at rubidium.dyndns.org> wrote:
>
>> For oscillators, they should have been turned on long enough such that
>> any drift is negligible. Alternatively you process out the quadratic
>> trend out of it. The later should be accompanied by some quality measure
>> of how much remaining systematics there is (see Jim Barnes PTTI paper on
>> Drift Estimators).
>
> Do you mean "The measurement of linear frequency drift in oscillators",
> http://tf.nist.gov/timefreq/general/tn1337/Tn264.pdf ?

Yes. I use the PTTI link 
http://tycho.usno.navy.mil/ptti/1983papers/Vol%2015_29.pdf
I was just lazy to dig the link up when I wrote that.

Cheers,
Magnus


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