Hi If you have something in the 100’s of these “up there” with things like doppler / temperature / radiation / and aging all involved ….. how different do they need to be in order for the initial delta frequency to be useful / good enough ?
I can see a pretty good argument that something past the “couple of ppm” might be needed. On a hundred devices that comes out to a pretty big spread. Bob > On Mar 13, 2019, at 7:03 PM, jimlux <[email protected]> wrote: > > On 3/13/19 2:28 PM, wb6bnq wrote: >> Hi Jim, >> If you have a mother-ship and presuming that it is going to be within "RF" >> range of all little ones, how about sending a "PILOT" tone that comes from >> the mother-ship to phase lock all the little ones internal oscillators ??? > > That's basically the idea. But you need multiple source locations at multiple > frequencies to solve for position, velocity, and local clock offset. > > The process is very much like GPS (or Transit) but, of course, there is no > GPS in deep space. > > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
