On Thu, 14 Feb 2008 11:00:32 -0000, you wrote: >Hi All, > >This comment is bound to get you all going. > >Maybe I'm being stupid, but why does everyone use Allan Variance and not >plan old accuracy? > >I am very familiar with David Allan's full article on Allan Variance. >However Allan Variance isn't the same as accuracy. > >Accuracy is what is important to most people. And that's not RMS but peak >to peak, e.g worse case. And not averaged over 24 hours but averaged over 1 >second or less.
Something I rather miss is some good old phase or frequency plots - especially if done at different timescales - which seem to be becoming rather less common now. As well as having a plot of ADEV or its relations, seeing what the reference is doing and when is useful, and most ADEV plots using so few values of tau does not help. Angus. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
