Iain Young wrote:
Gary Chatters wrote:
I have no idea of how the math works for computing heading.
Checkout FORWARD and INVERSE (and their 3d equivalents) at
http://www.ngs.noaa.gov/TOOLS/Inv_Fwd/Inv_Fwd.html
While these are hosted on a NOAA site, I'm sure I've seen
it on a NASA site as well. IIRC, there is also a C port
somewhere.
I am not sure that this would be useful in this application. Getting
< 1 degree heading error from two positions would require about 8mm
absolute accuracy. I suspect that such accuracy requires something like
the phase measurements as mentioned by Björn.
Gary
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