Re: [LEAPSECS] The Martian Chronicles

From: Tony Finch <dot_at_DOTAT.AT>
Date: Mon, 15 Jan 2007 16:18:43 +0000

On Mon, 15 Jan 2007, Rob Seaman wrote:
>
> I'm wondering whether the clock discipline might better emphasize
> only frequency in such circumstances, as opposed to merely tempering
> the PLL.

I think that if you only correct the frequency of a clock then each time
the frequency makes a deviation (e.g. because of temperature changes) you
will accumulate a phase error, and if there's a bias in frequency
deviations then the phase error will increase over time and become a
long-term frequency error.

Tony.
--
f.a.n.finch  <dot_at_dotat.at>  http://dotat.at/
ROCKALL MALIN HEBRIDES: WEST OR SOUTHWEST 7 TO SEVERE GALE 9, OCCASIONALLY
STORM 10, VEERING NORTHWEST 5 OR 6 LATER. HIGH, OCCASIONALLY VERY HIGH. RAIN
THEN SHOWERS. MODERATE OR GOOD, OCCASIONALLY POOR.
Received on Mon Jan 15 2007 - 08:30:24 PST

This archive was generated by hypermail 2.3.0 : Sat Sep 04 2010 - 09:44:55 PDT