Target discrimination apparatus

Claim 1

A target discrimination apparatus for a constant false alarm rate detector comprising in combination: A CFAR detector means to receive a digital input signal, said CFAR detector means comprising a constant false alarm rate detector, said CFAR detector means having a detection window, said detection window comprising a plurality of detection cells, said detection window providing a target signal, said CFAR detector means having a plurality of clutter cells to receive target clutter data from said digital input signal, said CFAR detector means averaging said target clutter data to a clutter average signal to provide a clutter threshold signal, comparator means comparing said clutter threshold signal and said target signal to detect a target, said comparator means providing a detection signal when said target signal exceeds said clutter threshold signal, and, a target discrimination means connected between said detection window and said plurality of clutter cells, said target discrimination means receiving said detection signal, said target discrimination means in response to said detection signal prevents said target signal from entering said plurality of clutter cells, once said target signal passes through said detection window, said CFAR detector means enables said target discrimination means to pass target clutter data to said plurality of clutter cells.