This one http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.129.8
is not exactly bad reading but from a time-nuts point of view everything is very predictive: With their 100 MHz system clock their TIC circuit has a resolution of 10 ns as well as their pps generating counter can be changed in increments of 10 ns. With that their system noise floor is well defined. Now take look at the receiver's sigma-tau diagram and find the point where the receiver's AD line crosses the system noise floor. Take this time as loop time constant of the pll and you have it. The bad thing about it: What some members of this group would do as a weekend fun project is EC funded "research" for others! Readings like that show what really massive knowledge is available with the members of this group. Cheers Ulrich Bangert > -----Ursprungliche Nachricht----- > Von: [email protected] > [mailto:[email protected]] Im Auftrag von Magnus Danielson > Gesendet: Sonntag, 11. April 2010 14:28 > An: Discussion of precise time and frequency measurement > Betreff: [time-nuts] GPS PPS smoothing article > > > Fellow time-nuts, > > Another article about GPS PPS tracking. Their twist to it has been to > lower the PPS jitter, not to create a locked 10 MHz clock. I > though it > may be useful for someone at least: > > http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.129.8 625&rep=rep1&type=pdf Cheers, Magnus _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
