Patent
1997-06-03
1998-06-02
Downs, Robert W.
395 22, 395 23, G06F 1518
Patent
active
057613834
ABSTRACT:
An adaptive filtering neural network classifier for classifying input signals, includes a neural network and one or more adaptive filters for receiving input analog signals to be classified and generates inputs for the classifier. Each adaptive filter is characterized as having a predetermined number of operating parameters. An analog to digital converter converts each input signal into a digital signal before input to the neural network. The neural network processes each digital signal to generate therefrom a plurality of weighted output signals in accordance with the type of network implemented. One of the weighted output signals represents a class for the input signal, and an error signal representing a difference between the weighted output signals and a predetermined desired output is also generated by the network. A control device responsive to the error signal generates a further set of operating filter parameters for input to each of the adaptive filters to change the operating response thereof and minimize the error signal.
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Buckland Dennis
Engel Stephen J.
Anderson Terry J.
Downs Robert W.
Hoch Jr. Karl J.
Northrop Grumman Corporation
Shah Sanjiv
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