[time-nuts] Comparing Reference Accuracy
Bruce Griffiths
bruce.griffiths at xtra.co.nz
Thu May 22 22:09:32 UTC 2008
Stanley Reynolds wrote:
> The prams for sample size could also be set in the sampling PICs you would probably want to set them all the same.
>
A much better scheme is to time stamp the leading edges of the various
PPS signals (from the GPS receiver and the divided down output of each
GPSDO) using a common time base.
The time stamp resolution is improved by using a higher frequency clock
and/or a time interval interpolator for each input channel.
This is the scheme used by NIST for remote frequency measurement.
Bruce
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