i have recently been requested by a friend, and electronics technician, to evaluate the accuracy of a gps product. this company claims with the use of two L1 patch antennas, spaced at two meters, their receiver can measure/resolve/determine six arc minutes difference in direction, both statically and dynamic. the receiver must also have tilt sensors, gyro and accelerometer; as they also claim determination of pitch and roll, as well as heading. think land nav, marine nav, photogrammetry, etc.
this is going to be fascinating.
i propose to make a strut to span a wild t1a's standards, one meter e/w. one antenna each end. in other words, the strut will be aligned perpendicular to the telescope's line of sight. set zero, initialize signal, etc. check orientation, change by six minute increments, and see how it goes.
does anyone have any other ideas/input?
Check out the Applanix web site.
Researched by the military as a supplemental for GPS under canopy.
It uses inertia to keep a "best guess" of your position until it can regain lock and pin point you again.
it is the crescent vector II oem board. looks impressive to me. please read the submittal from their website:
http://www.hemispheregps.com/Products/PrecisionProducts/Main/tabid/543/LiveAccId/21970/Default.aspx