System and method for measuring position and orientation using distortion-compensated magnetic fields
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United States of America Patent
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Aug 31, 2010
Grant Date -
Jul 3, 2008
app pub date -
Feb 26, 2008
filing date -
Sep 20, 2004
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Abstract
An electromagnetic tracking system and a distortion compensation method that utilize a lead-lag network model to compensate for position and orientation distortion caused by eddy currents formed in one more conductive distorters located within a tracking environment during electromagnetic tracking of one or more objects. The method is adaptive relative to the amount of distortion cause by the conductive distorters.
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