Frequency-domain block-adaptive digital filter

Details Frequency-domain block-adaptive digital filter Frequency-domain block-adaptive digital filter

H - Electricity

03

H

328/0.5

H03H 21/00 (2006.01)

Patent

CA 1266893

ABSTRACT: "Frequency-domain block-adaptive digital filter". A frequency-domain block-adaptive digital filter (FDAF) having a finite impulse response of length N for filtering a time-domain input signal in accordance with the overlap-save method includes window means (11) for obtaining modifications (B(p;m)) of the 2N frequency- domain weighting factors (W(p;m)) from correlation pro- ducts (A(p;m)). A known FDAF of this type contains five 2N-point FFT's, two of which are used in the window means (11). By utilizing a special time-domain window function which can be implemented very efficiently in the window means (11) with the aid of a frequency-domain convolution, a FDAF of this type containing only three 2N-point FFT's is obtained whose convergence properties are comparable to those of the known FDAF containing five 2N-point FFT's.

540073

Affiliated with

Also associated with

Rating

Frequency-domain block-adaptive digital filter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Frequency-domain block-adaptive digital filter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Frequency-domain block-adaptive digital filter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1208928