Adaptive filter including controlled tap gain coefficient drift

Details Adaptive filter including controlled tap gain coefficient drift Adaptive filter including controlled tap gain coefficient drift

H - Electricity

03

H

328/0.3

H03H 21/00 (2006.01) H04B 3/23 (2006.01)

Patent

CA 1202693

- 14 - ADAPTIVE FILTER INCLUDING CONTROLLED TAP GAIN COEFFICIENT DRIFT Abstract In adaptive filters, under certain incoming signal conditions the tap gain coefficients tend to drift toward relatively large values. This condition has been countered by taking so-called leakage into account in generating the tap gain coefficients. Introduction of leakage tends to drive the tap gains toward zero and is desirable under certain incoming signal conditions and not others. Indeed, during intervals that concentrated partial or narrow band energy, e.g., single frequency tones, multifrequency tones and the like, is incoming to the filter there is a need to introduce a relatively large leakage value into the tap gain coefficients. However, during intervals when whole or wide band energy, e.g., speech or noise, is incoming to the filter no leakage is desired or needed. This is realized by detecting intervals during which partial band energy is incoming to the filter and controllably increasing the leakage value during those intervals only.

436607

Affiliated with

Also associated with

Rating

Adaptive filter including controlled tap gain coefficient drift does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Adaptive filter including controlled tap gain coefficient drift, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Adaptive filter including controlled tap gain coefficient drift will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1227125