Broadband Interference Suppression Performance of Minimum Redundancy Arrays

Author

Duan, Huiping ; Ng, Boon Poh ; See, Chong Meng Samson ; Fang, Jun

Author_Institution

Sch. of Electr. & Electron. Engi- neering/NTU-Temasek Labs., Nanyang Technol. Univ., Singapore

Volume

56

Issue

6

fYear

2008

fDate

6/1/2008 12:00:00 AM

Firstpage

2406

Lastpage

2416

Abstract

The broadband interference suppression performance of the minimum redundancy array (MRA) used in the linearly constrained minimum variance (LCMV) beamformer is studied in this paper. The ideal continuous-time, infinite-length filter instead of the realistic finite-order digital filter is assumed in the array processor. The expressions of the power spectrum of the beamformer output in different scenarios are derived to compute the mean output power. Several original properties of the performance of the MRA compared with that of the uniform linear array (ULA) are obtained by mathematical proofs and numerical studies.

Keywords

array signal processing; interference suppression; redundancy; array processor; broadband interference suppression; finite-order digital filter; linearly constrained minimum variance beamformer; minimum redundancy arrays; uniform linear array; Apertures; Bandwidth; Digital filters; Finite impulse response filter; Geometry; Interference suppression; Laboratories; Microphone arrays; Sensor arrays; Signal processing; Broadband LCMV beamformer; interference and noise suppression gain; minimum redundancy array (MRA);

fLanguage

English

Journal_Title

Signal Processing, IEEE Transactions on

Publisher

ieee

ISSN

1053-587X

Type

jour

DOI

10.1109/TSP.2007.916130

Filename

4524044