QR-RLS Based Minimum Variance Distortionless Responses Beamformer

Author

Yu, Zhu Liang ; Ser, Wee ; Rahadja, Susanto

Author_Institution

Center for Signal Process., Nanyang Technol. Univ.

Volume

3

fYear

2006

fDate

14-19 May 2006

Abstract

In this paper, a QR-RLS based minimum variance distortionless responses (MVDR) method, and its systolic array processor, are proposed. The QR-RLS based MVDR has many advantages, such as numerical stability, computational efficiency and pipelined structure in implementation. We also point out that the conventional method, MVDR using QR-RLS method by directly forcing the desired signal to zero is not correct. Numerical experiments are carried out to illustrate the effectiveness of the proposed method

Keywords

array signal processing; least squares approximations; matrix inversion; numerical stability; recursive estimation; systolic arrays; QR-RLS; computational efficiency; minimum variance distortionless responses beamformer; numerical stability; pipelined structure; recursive least squares; systolic array processor; Adaptive filters; Array signal processing; Computational efficiency; Distortion; Least squares methods; Numerical stability; Resonance light scattering; Signal processing algorithms; Systolic arrays; Throughput;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech and Signal Processing, 2006. ICASSP 2006 Proceedings. 2006 IEEE International Conference on

Conference_Location

Toulouse

ISSN

1520-6149

Print_ISBN

1-4244-0469-X

Type

conf

DOI

10.1109/ICASSP.2006.1660821

Filename

1660821