CORDIC realization of the transversal adaptive filter using a trigonometric LMS algorithm

Author

Chakraborty, Mrityunjoy ; Dhar, Anindya S. ; Pervin, Suraiya

Author_Institution

Dept. of Electron. & Electr. Commun. Eng., Indian Inst. of Technol., Kharagpur, India

Volume

2

fYear

2001

fDate

2001

Firstpage

1225

Abstract

This paper presents a class of pipelined CORDIC architectures for the LMS-based transversal adaptive filter. For this, an alternate formulation of the LMS algorithm is considered, obtained by expressing the mean square error as a convex function of a set of angle variables that are monotonically related to the filter tap weights. The proposed architectures employ microlevel pipelining and are adjustable to strike tradeoffs between throughput efficiency vis-a-vis hardware complexity

Keywords

adaptive filters; digital filters; digital signal processing chips; least mean squares methods; pipeline arithmetic; LMS-based transversal adaptive filter; MSE; angle variables; convex function; filter tap weights; hardware complexity; mean square error; microlevel pipelining; pipelined CORDIC architectures; throughput efficiency; transversal adaptive filter; trigonometric LMS algorithm; Adaptive filters; Array signal processing; Filtering; Finite impulse response filter; Hardware; Hypercubes; Least squares approximation; Mean square error methods; Signal processing algorithms; Transversal filters;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 2001. Proceedings. (ICASSP '01). 2001 IEEE International Conference on

Conference_Location

Salt Lake City, UT

ISSN

1520-6149

Print_ISBN

0-7803-7041-4

Type

conf

DOI

10.1109/ICASSP.2001.941145

Filename

941145