Dual channel spatially adaptive CFAR
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United States of America Patent
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Jan 5, 2010
Grant Date -
Oct 19, 2006
app pub date -
Nov 14, 2005
filing date -
Nov 12, 2004
priority date (Note) -
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Abstract
A system for reducing CFAR loss due to sea clutter is disclosed. The system includes a first channel tuned for CFAR gain in a spatially correlated background and a second channel tuned for low CFAR loss in spatially uncorrelated backgrounds. Each of the channels employs a distribution free CFAR using rank ordered statistics to establish a constant false alarm rate. The output of each channel is fused by a hit correlation function and the stream of combined hits is processed by a target centroiding function.
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