4D GIS based virtual reality for moving target prediction
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United States of America Patent
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Jul 24, 2012
Grant Date -
Apr 2, 2009
app pub date -
Aug 22, 2008
filing date -
Aug 22, 2007
priority date (Note) -
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Abstract
The technology of the 4D-GIS system deploys a GIS-based algorithm used to determine the location of a moving target through registering the terrain image obtained from a Moving Target Indication (MTI) sensor or small Unmanned Aerial Vehicle (UAV) camera with the digital map from GIS. For motion prediction the target state is estimated using an Extended Kalman Filter (EKF). In order to enhance the prediction of the moving target's trajectory a fuzzy logic reasoning algorithm is used to estimate the destination of a moving target through synthesizing data from GIS, target statistics, tactics and other past experience derived information, such as, likely moving direction of targets in correlation with the nature of the terrain and surmised mission.
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