If you search for "GNSS time transfer" you will find a lot of papers etc. For example these might get you started: https://www.bipm.org/ws/CCTF/TAI_TRAINING/Allowed/Fundamentals/Training-2012-GNSS-Defraigne.pdf https://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=7909843
I tried to collect some tools for PPP post-processing on github: https://github.com/aewallin/ppp-tools I am not sure what (open) software exists for common-view analysis... PPP uses satellite clock-corrections and orbit-corrections from an IGS data-centre. They have "ultra rapid" and "rapid" products (=downloadable files) that are available with some days or hours of delay. The "final" products can have up to two weeks (?) of delay. With a dual-frequency receiver the ionosphere delay can be removed ('ionosphere-free L1/L2 linear combination') and my understanding is the troposphere-delay (water content) is one of the larger remaining uncertainties. AW On Mon, Mar 18, 2019 at 5:03 PM Rodger via time-nuts < time-nuts@lists.febo.com> wrote: > > Regarding your comments on collecting raw time data from GPS and post > processing it. Can you provide any reference info, links, etc. with more > detail on that topic? > Clearly I'd need a GPS that outputs the proper raw messaging and the > software for processing it. I'm somewhat familiar with the techniques > involved to improve GPS position data, but hadn't thought about it as much > for timing. > > Thanks, > > Rodger > > _______________________________________________ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.