Ed nothing attached
On Tue, Jul 2, 2013 at 2:05 PM, ed breya <[email protected]> wrote: > This talk of Costas loops reminded me of something I wanted to investigate > some day. I read somewhere a while back about carrier-phase measurements, > and various methods for recovering the GPS carrier frequencies, including > the Costas loop, and something with carrier-squaring. Nothing I found > showed actual examples or detail of how this is done, only high-order > mathematical descriptions. > > For my needs, I'm more of a frequency-nut - I usually don't care about > getting time info, but I'd like perfect 10 MHz for reference. Can using > only the carriers lead to simple ways to get the same (or better) frequency > stability as a conventional GPSDO, but without the time and location info, > or is it pointless to worry about it, and just go with full GPS decoding of > everything? Or, is carrier-phase just an enhancement only if you already > have the full GPS info? > > I know that the group could redesign the whole GPS system with tubes if > necessary, considering recent philosophical discussions on that, so I think > there's plenty of knowledge here about carrier-phase related stuff too. > > Ed > > ______________________________**_________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/** > mailman/listinfo/time-nuts<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.
