A high sampling rate delayed LMS filter architecture

Author

Meyer, M.D. ; Agrawal, D.P.

Author_Institution

Dept. of Electr. & Comput. Eng., North Carolina State Univ., Raleigh, NC, USA

Volume

40

Issue

11

fYear

1993

fDate

11/1/1993 12:00:00 AM

Firstpage

727

Lastpage

729

Abstract

The problem of implementing a high sampling rate transversal form adaptive filter is investigated. A highly pipelined systolic-type alternative to the conventional LMS adaptive filter is presented. The proposed system consists of a linear array of identical processing modules specifically suited to the computational requirements of the delayed LMS algorithm. The resulting adaptive filter structure can accommodate very high sampling rates, which are independent of the filter order. The performance of the system is analyzed in terms of computational speedup and maximum sampling rate, and the effect of adaptation delay on algorithm convergence is addressed

Keywords

adaptive filters; convergence; digital filters; least squares approximations; pipeline processing; adaptation delay; algorithm convergence; computational speedup; delayed LMS filter architecture; high sampling rate; maximum sampling rate; pipelined systolic-type alternative; transversal form adaptive filter; Adaptive filters; Convergence; Delay; Equations; Error correction; Feedback; Least squares approximation; Sampling methods; Signal processing algorithms; Transversal filters;

fLanguage

English

Journal_Title

Circuits and Systems II: Analog and Digital Signal Processing, IEEE Transactions on

Publisher

ieee

ISSN

1057-7130

Type

jour

DOI

10.1109/82.251841

Filename

251841