RADAR IMAGE PROCESSING
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United States of America Patent
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Issued Date -
Nov 7, 2013
app pub date -
Nov 10, 2011
filing date -
Nov 11, 2010
priority date (Note) -
Abandoned
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Abstract
Apparatus and a method for processing a radar image, the method comprising: using a radar, generating a radar image of an area of terrain (8), the radar image deriving from radar observations taken along a plurality of azimuth angles; performing a background extraction process on the radar image to extract a background image comprising extracted radar observations, the background extraction process comprising estimating a range spread of a radar echo from the surface of the terrain (8) as function of the azimuth angle and a tilt of the radar relative to the surface of the terrain (8); fitting a model to the extracted radar observations along a particular azimuth angle; determining a value of a parameter indicative of the goodness of fit between the model and the extracted radar observations along the particular azimuth angle; and determining a classification depending on the value of the parameter for that azimuth angle.
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