A method for optimizing an adaptive filter update coefficient

Details A method for optimizing an adaptive filter update coefficient A method for optimizing an adaptive filter update coefficient

H - Electricity

03

H

H03H 17/02 (2006.01) H03H 21/00 (2006.01)

Patent

CA 2086548

The method of the present invention generates an opti- mal adaptive filter update coefficient by first generating three error signals using a signal input and three update coeffi- cients (301- 303). Mean Square Error (MSE) values are esti- mated (307 and 308) for the first and third error signals. The first MSE value (307) is subtracted (309) from the third MSE value (308) to generate a difference signal. The difference sig- nal is used to generate (310) an update signal that is used to modify the update coefficients. The process of the present in- vention is repeated until the difference signal is substantially zero, thus optimizing the second update coefficient. This pro- cess enables an update coefficient for an adaptive filter to quickly adapt to a changing environment.

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