A deconvolution approach to source localization

Author

Fuchs, Jean-Jacques ; Chuberre, Hervé

Author_Institution

Rennes I Univ., France

Volume

42

Issue

6

fYear

1994

fDate

6/1/1994 12:00:00 AM

Firstpage

1462

Lastpage

1470

Abstract

Due to its low resolution the conventional beamformer (CBF) has generally been neglected in the recent literature on array processing and considerable attention devoted to the high-resolution (HR) techniques. Applying a deconvolution approach to the output of the CBF, the authors obtain a source localization procedure whose performances are comparable to those of the most efficient HR techniques. The scheme, moreover, also furnishes estimates of the source powers and comprises a test that detects the number of sources present. It can indeed be seen as a means to obtain maximum likelihood estimates (MLE) when the CBF-output is taken as the observed data

Keywords

array signal processing; inverse problems; maximum likelihood estimation; MLE; array processing; conventional beamformer; deconvolution approach; high-resolution techniques; maximum likelihood estimates; observed data; source localization; source power estimation; Apertures; Array signal processing; Deconvolution; Inverse problems; Maximum likelihood detection; Maximum likelihood estimation; Narrowband; Sensor arrays; Shape; Testing;

fLanguage

English

Journal_Title

Signal Processing, IEEE Transactions on

Publisher

ieee

ISSN

1053-587X

Type

jour

DOI

10.1109/78.286961

Filename

286961