In message <bay162-w9fff4214c4de8fd1752f3df...@phx.gbl>, Tom Knox writes:
>Great dialog, One thing I have seen is the Allan intercept almost >always has a "knee". If you wanted the best possible GPS quartz >reference developing a variable Allan intercept would allow this >knee to be moved and then mathematically removed during a gated >measurement. >Allowing to effectively see behind he knee offering lower uncertainty >in this important area. I did try a spectral approach before I settled on the current approach, because I foresaw the precence of 12 and 24 hour periodicities, but while good on the paper and post-factum, I never managed to get it to autoestimate reliably in real-time. If you can find the paper about the algorithm timing.com was founded on, you will find much interesting fodder therein, but my reimplementation of their algorithem only worked for Rb's I could never get it to do anything usable for OCXOs. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 p...@freebsd.org | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. _______________________________________________ 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.
