[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?
>
> _______________________________________________



More information about the time-nuts mailing list