Post processing raw observation data gathered in the field has been very common decades and you should have no problems using RTKLIB (the RTKPOST tool) for that. Many "old timers" still do it that way for various reasons and when we are in the filed we are checking as we go but we old "trust" the post processed results. And post processioning means you can also use final orbits and other data products that are readily available to get better results. All of this is moot if your field data is itself corrupted. And you can easily turn RTCM3.x into RINEX files with other RTKLIB tools and find 3rd party processing services to solve it for you.
Time synchronization will not in fact be an issue. RTCM 3.x provides the precise time over the current GPS week, so you have to tell the tool (RTKLIB or any other such tool) what week a file came from but the file name conventions used often help with that. There are a few other messages and tricks, but this solves 99% of your issues. The navigation filter will then determine the precise time. The data from the "nearest RTK" station of course depends on where you are. Many tools (RTKLIB, SNIP, and often the NTRIP Caster device itself) will provide a means to capture the raw RTCM data for your post processing needs. NGS CORS even runs a long term FTP site with such data, but the data is decimated. Depending on your application that may not be an issue. *So yes this is quite possible and routinely done*. But you have not told the group anything more about the devices in the field (the rovers) and what span of location and how often the positional estimates are wanted, what precision is required, etc. Many of the practical details and useful advice you might get will turn on that. Regards, DCK -- View this message in context: http://open-source-gps-related-discussion-and-support.1099874.n2.nabble.com/Post-Processing-with-RTKLIB-tp7573584p7573585.html Sent from the Open Source GPS-related discussion and support mailing list archive at Nabble.com. _______________________________________________ This message is sent to you from FOSS-GPS@lists.osgeo.org mailing list. Visit https://lists.osgeo.org/mailman/listinfo/foss-gps to manage your subscription For more information, check http://wiki.osgeo.org/wiki/FOSS-GPS