[time-nuts] ADEV secondary standard

[Bruce Griffiths]

Jeffrey Pawlan wrote:
> You have just described the current preferred method used by NIST for 
> calibrating phase noise measurements.
>
>
>   
I know, if the phase noise spectrum is known then ADEV can be calculated
from it , if the ADEV measurement system frequency response is known.

The questions are:

1) Is there a better method?

2) Are there any unanticipated problems with the method?

When testing indirect methods of measuring ADEV such a standard would be
useful for checking the measurement system and  its algorithms.

Bruce