Efficient realization of the block frequency domain adaptive filter
نویسندگان
چکیده
In many frequency domain adaptive lters Fast Fourier Fourier Transforms FFTs are used to transform sig nals which are augmented with zeros The overall com putational complexity of these adaptive lters is mainly determined by these windowed FFTs rather than by the ltering operation itself This contribution presents a new way of calculating these windowed FFTs ef ciently In addition a method is deduced for im plementing non windowed FFTs of overlapping input data using the previously mentioned e cient windowed FFTs Also a method is presented for implementing the windowed FFTs in the update part even more e cient
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