Three dimensional radar system
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United States of America Patent
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Mar 17, 2015
Grant Date -
Mar 21, 2013
app pub date -
Feb 16, 2011
filing date -
Feb 22, 2010
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Abstract
A system and a method of generating a three-dimensional terrain model using one-dimensional interferometry of a rotating radar unit is provided herein. Height information is evaluated from phase differences between two echoes by applying a Kalman filter in relation to a phase confidence map that is generated from phase forward projections relating to formerly analyzed phase data. The radar system starts from a flat earth model and gathers height information of the actual terrain as the platform approaches it. Height ambiguities are corrected by removing redundant 2π multiples from the unwrapped phase difference between the echoes.
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