Adaptive filtering using Hartley transform and overlap-save method

Author

Wong, T.W. ; Kwong, C.P.

Author_Institution

Autom. Syst., Shatin, Hong Kong

Volume

39

Issue

7

fYear

1991

fDate

7/1/1991 12:00:00 AM

Firstpage

1708

Lastpage

1711

Abstract

A novel method of implementing FIR (finite impulse response) adaptive filters using the discrete Hartley transform (DHT) and the overlap-save method is proposed. It not only has the advantage of fast convergence for highly correlated input signals, but also provides a significant reduction in computation over the conventional time-domain and frequency-domain least mean square (LMS) adaptive filters. Compared with the previously proposed unconstrained frequency-domain FLMS algorithm, the convergence performance is similar, but an approximate saving of 30% in computation can be obtained for the usual filter length

Keywords

adaptive filters; convergence; digital filters; transforms; DHT; FIR adaptive filters; correlated input signals; discrete Hartley transform; fast convergence; filter length; finite impulse response; overlap-save method; signal processing; Adaptive algorithm; Adaptive filters; Content addressable storage; Convergence; Discrete transforms; Finite impulse response filter; Least squares approximation; Signal processing algorithms; System identification; Time domain analysis;

fLanguage

English

Journal_Title

Signal Processing, IEEE Transactions on

Publisher

ieee

ISSN

1053-587X

Type

jour

DOI

10.1109/78.134417

Filename

134417