Efficient realization of the block frequency domain adaptive filter

被引：0

作者：

Schobben, DWE

Egelmeers, GPM

Sommen, PCW

机构：

来源：

1997 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING, VOLS I - V: VOL I: PLENARY, EXPERT SUMMARIES, SPECIAL, AUDIO, UNDERWATER ACOUSTICS, VLSI; VOL II: SPEECH PROCESSING; VOL III: SPEECH PROCESSING, DIGITAL SIGNAL PROCESSING; VOL IV: MULTIDIMENSIONAL SIGNAL PROCESSING, NEURAL NETWORKS - VOL V: STATISTICAL SIGNAL AND ARRAY PROCESSING, APPLICATIONS | 1997年

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D O I：

暂无

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

In many frequency domain adaptive filters Fast Fourier Fourier Transforms (FFTs) are used to transform signals which are augmented with zeros. The overall computational complexity of these adaptive filters is mainly determined by these windowed FFTs, rather than by the filtering operation itself. This contribution presents a new way of calculating these windowed FFTs efficiently. In addition, a method is deduced for implementing non-windowed FFTs of overlapping input data using the previously mentioned efficient windowed FFTs. Also, a method is presented for implementing the windowed FFTs in the update part even more efficient.

引用

页码：2257 / 2260

页数：4