Adaptive Wideband Beamforming with Frequency Response Constraints

Author

Chen, MingJian ; Luo, Jingqing

Author_Institution

Key Lab. of Electron. Restriction, 309 Res. Electron. Eng. Inst., Hefei, China

fYear

2011

fDate

21-23 Oct. 2011

Firstpage

46

Lastpage

49

Abstract

In this paper, a novel adaptive linearly constrained minimum variance (LCMV) beam former is proposed based on frequency response constraints. With frequency response constrained optimization criteria, the new constraint vector and thus the new weight vector are designed to improve the output signal to interference plus noise ratio (SINR), compared to the conventional distortion less constraint. The proposed methods flexibly control tradeoff between the output SINR performance and signal distortion. Simulation results are presented to demonstrate that the optimized beam former has higher overall performance about the SINR performance and signal distortion.

Keywords

array signal processing; frequency response; optimisation; vectors; SINR; adaptive LCMV beamformer; adaptive linearly constrained minimum variance beamformer; adaptive wideband beamforming; constraint vector; distortion less constraint; flexibly control tradeoff; frequency response constrained optimization criteria; signal distortion; signal to interference plus noise ratio; weight vector; Array signal processing; Arrays; Distortion; Interference; Signal to noise ratio; Vectors; Wideband; SINR performance; frequency constraints; frost beamformer; signal distortion; wideband adaptive beamforming;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation, Measurement, Computer, Communication and Control, 2011 First International Conference on

Conference_Location

Beijing

Print_ISBN

978-0-7695-4519-6

Type

conf

DOI

10.1109/IMCCC.2011.21

Filename

6153956