Title :
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.
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;
Conference_Titel :
Acoustics, Speech and Signal Processing, 2006. ICASSP 2006 Proceedings. 2006 IEEE International Conference on
Conference_Location :
Toulouse
Print_ISBN :
1-4244-0469-X
DOI :
10.1109/ICASSP.2006.1660821
