[time-nuts] suitable statistics for measurements with gaps

jimlux jimlux at earthlink.net
Fri Apr 22 09:39:07 EDT 2016


All woodpecker kidding aside, this brings up an interesting question.

For most of the measures we look at: ADEV and related measures, you're 
looking at statistics collected essentially continuously (e.g. adjacent 
sample frequency) at various time offsets.

But what about when the observations have gaps? Say you're measuring the 
frequency of a spacecraft oscillator, and you can only see it for 8 
hours a day?  the description of the frequency variation at a time 
difference of 24 hours is useful, even if the integration time for each 
measurement is, say, 1000 seconds.

Maybe such things are so idiosyncratic that the description should be 
unique to the situation, or maybe there's no real insight to be gained 
by a generalized formulation, as there is with the Leeson model.




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