[time-nuts] AVAR calculation

Bruce Griffiths bruce.griffiths at xtra.co.nz
Sun Jan 10 22:30:22 UTC 2010


Filip Ozimek wrote:
> I'm trying to calculate AVAR from collected data, but I would expect a different behavior of my DUT. Does anybody can calculate the AVAR for me?
> Gate time was 1s, without any deadtime between measurements,
> this is a file http://www.fuw.edu.pl/~fozimek/pomiar61-frep.txt
> with collected data.
>
> Thanks,
>
> Filip Ozimek
>
>    
Comparing the overlapped Hadamard deviation and overlapped ADEV plots 
indicates that linear frequency drift may be significant for tau > 
100sec or so.

Bruce




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