Two-dimensional adaptive array for spatially separating and tracking uncorrelated sources

Author

Ko, C.C.

Author_Institution

Dept. of Electr. Eng., Nat. Univ. of Singapore, Singapore

Volume

35

Issue

1

fYear

1999

fDate

1/1/1999 12:00:00 AM

Firstpage

93

Lastpage

101

Abstract

A new structure for the separation and tracking of uncorrelated sources through the use of a 2-dimensional adaptive array is proposed and investigated. The structure consists of a matrix preprocessing beamformer designed to result in outputs which are due to individual sources in the steady state. The preprocessing weights of the beamformer are calculated using the estimated locations of the sources and are updated periodically. Continuous estimation of the source locations is accomplished by using the beamformer outputs to adaptively eliminate correlated components in a reference element of the array while the structure proposed may have rather erratic initial convergence behavior, it has the advantages of being simple to be implemented, fast in tracking, and well suited for applications in mobile communication systems for increasing system capacity

Keywords

adaptive signal processing; array signal processing; mobile communication; parameter estimation; tracking; 2-dimensional adaptive array; estimated locations; matrix preprocessing beamformer; mobile communication systems; preprocessing weights; reference element; source locations; spatial separation; tracking; two-dimensional adaptive array; uncorrelated sources; Adaptive arrays; Array signal processing; Convergence; Entropy; Interference elimination; Matrix decomposition; Mobile communication; Multiple signal classification; Position measurement; Steady-state;

fLanguage

English

Journal_Title

Aerospace and Electronic Systems, IEEE Transactions on

Publisher

ieee

ISSN

0018-9251

Type

jour

DOI

10.1109/7.745683

Filename

745683