Hello Harald,
On Sun, 12 Dec 2010 17:01:22 +0100, "Harald Welte" <laforge(a)gnumonks.org>
wrote:
Pretty interesting. If only I had the time to implement it ;)
I don't think that implementing is the hard part, debugging is. You
send data which might be wrong due to some bugs in your code into a
"black-box" which does something with the data. The "black-box" will
not tell you if your data are wrong, if they are, it might just take
longer till any results are returned. So you are not sure if you are
doing the things right.
I conclude the above from my experience so far: Even phones with very
extensive tracing capabilities don't tell you much about what is going
on during their GPS position calculations. And at least I am not aware
of a GPS server I have access to who will provide those data required
for an "MS-assisted" measurement so that one could compare the own
calculation against a reference.
If someone know about a server providing those data (I am not
talking of things like "almanac" or "ephemeris" here) or knows
about existing source code to do the calculation, I would like
to know.
BTW, the book "Server-Side GPS and Assisted-GPS in Java" contains
a few nice chapters, one should not care about "Java" in the title,
only the examples are written in Java.
Best regards,
Dieter
--
Dieter Spaar, Germany spaar(a)mirider.augusta.de