Re: GPS Solutions - A Paper

[Greg Troxel]

Unfortunately they chose to publish with Elsevier.   However, at least
they filed on arxiv, so people can read it:

  https://arxiv.org/abs/2310.09261

The phys.org blurb is pretty atrocious.  While there's something of
mathematical interest in the paper, and that's cool for math nerds and
important for the fundamentals, it seems very disconnected from the
issues that actually cause trouble.  In the paper, I was unable to find
"tropo", "iono", "delay", "multipath", "multi-path".  Scanning it, I saw
nothing about "map database is wrong".  That's totally fine for serious
math, but it's irresponsible to conflate left vs right and driving into
harbors with the theoretical possibility of finding a wrong solution due
to a degenerate constellation.