Hi The interesting thing is that you sometimes can get a position hold receiver to report it's estimated location…. Not so much on current product, but on some of the old stuff.
Bob On Dec 29, 2012, at 9:51 PM, Jim Lux <jim...@earthlink.net> wrote: > On 12/29/12 6:34 PM, Bob Camp wrote: >> Hi >> >> The gotcha is that often the "navigation" and "timing" receivers are >> identical in terms of hardware. There is no upgraded hardware in the timing >> device. >> >> When you put a receiver into position hold, you are telling it "I don't care >> about the location solution". It reduces the weight of that part of the >> filter. Yes, that's only one way to look at it and there are other ways to >> look at it. > > > or, another conceptual model is: I'm fixed, I know where the transmitting > satellite is, and can calculate range and doppler a priori, so anything else > must be local clock variation and propagation. And you can average out the > propagation among multiple satellites (or use one satellite as your timing > reference).. > > Particularly if you are post processing and have precise ephemeris data for > the satellites.... > > > > > > > _______________________________________________ > 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. _______________________________________________ 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.
