Mark Spencer wrote:
Would Time Difference of Arrival techniques combined with an array of four closely
spaced antennas work with Gps signals as a means of determing the orentation of the
antenna array vs the gps satellites ? (I'm thinking traditional TDOA
techniques may not work with gps signals.)
There are commercial products available:
http://www.hemispheregps.com/Default.aspx?tabid=379
http://www.hemispheregps.com/Default.aspx?tabid=412
These devices claim less than 1 degree RMS heading accuracy.
Here the antennas are integrated and a fixed 0.5 meter apart. They do
(or did) make a board that could be used with separate antennas, but I
can not find it right now.
I have no idea of how the math works for computing heading.
Gary
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