Adaptive filter employing adaptively controlled forgetting...

Details Adaptive filter employing adaptively controlled forgetting... Adaptive filter employing adaptively controlled forgetting...

2007-05-29

2007-05-29

Mai, Tan V. (Department: 2193)

Electrical computers: arithmetic processing and calculating

Electrical digital calculating computer

Particular function performed

Reexamination Certificate

active

10395286

ABSTRACT:
An adaptive filter, employing an adaptively controlled forgetting factor, includes a first circuit for determining a gradient of an error signal and a second circuit for determining a value of the forgetting factor. The value of the forgetting factor is updated based on comparing the gradient of the error signal to the forgetting factor. Equations to update the forgetting factor may be solved using a recursive least squares algorithm. Comparing the gradient of the error signal to the forgetting factor may include, for example, dividing the error signal gradient by a compliment of the forgetting factor. A method for updating the forgetting factor includes determining the gradient of the error signal, determining a value of the forgetting factor, and updating the value of the forgetting factor based on comparing the gradient of the error signal to the forgetting factor. The forgetting factor may be stored in the adaptive filter.

REFERENCES:
patent: 4607326 (1986-08-01), Mori et al.
patent: 6532454 (2003-03-01), Werbos
patent: 2002/0110188 (2002-08-01), Ohmori et al.
patent: 2004/0210172 (2004-10-01), Palazzolo et al.
patent: H10-508383 (1997-05-01), None
patent: H9-139696 (1998-08-01), None

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