[time-nuts] Adev, Mdev, and now Tdev

Magnus Danielson cfmd at bredband.net
Tue Apr 10 06:21:47 EDT 2007


From: Peter Vince <pvince at theiet.org>
Subject: [time-nuts] Adev, Mdev, and now Tdev
Date: Tue, 10 Apr 2007 11:11:08 +0100
Message-ID: <v04210101c24112b4fe00@[10.0.0.3]>

> Hello all,
> 
> 	Following on from the recent discussions of Adev and Mdev, I 
> have been hearing about Tdev recently - is this just another 
> modification to the basic idea?

TDEV is a variant of MDEV rescaled to show the accumulated time deviation.

TDEV(tau) = tau*MDEV(tau)/sqrt(3)

Mostly used in telecom specs.

Cheers,
Magnus




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