| 3D location by polar
coordinates |
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| • | Tracker defines
local X,Y,Z axes |
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| • | Interferometer
determines distance D |
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| • | Mirror encoders
provide zenith angle Zn |
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| and azimuth angle
Az (approximately in |
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| vertical and
horizontal planes) |
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| • | Multiple tracker
locations to cover large |
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| objects are
located in global coordinate |
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| system by use of
common points |
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| è Network
orientation |
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(Bundle adjustment) |
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