[time-nuts] Allan Deviation Calulations
mike cook
michael.cook at sfr.fr
Thu Sep 22 12:31:22 UTC 2011
Le 22/09/2011 13:45, Bruce Griffiths a écrit :
>
>> I have always thought of a noise floor as the lower limit to which
>> you can trust your measurement. Measurements below the floor can be
>> statistically derived IIRC, but calculating the Allan deviation of it
>> makes no sense to me. As your measurements are all above it , you
>> can trust them.
>>
>
> Since the noise floor isnt provided your conclusion itself isnt
> sustainable.
>>
>>
> Indeed Bruce, It has to be measured. I was really meaning that
> provided measurements of the DUT are above the floor, then it
> doesn't have to be factored in. Am I wrong there?
>
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