Passive array shape calibration with wide band sources of unknown location

Author

Forster, Philippe ; Martinerie, Francis

Author_Institution

Lab. Electron. et Commun., CNAM, Paris, France

Volume

1

fYear

1994

fDate

13-16 Sep 1994

Abstract

The paper presents a new method for source localization and array shape calibration with an array of unknown geometry. The proposed method uses as elementary sensors orthogonal acoustic dipoles which allow both array shape calibration and directions of arrival estimation for wide band signals with overlapping spectra, without any prior knowledge of sensors and sources locations. Extensive simulations with a random array of 8 sensors show that good results are obtained for wide band sources over an octave, a time bandwidth product of 4000, and a signal to noise ratio as weak as -13 dB

Keywords

acoustic signal processing; calibration; direction-of-arrival estimation; underwater sound; directions of arrival estimation; orthogonal acoustic dipoles; overlapping spectra; passive array shape calibration; random array; signal to noise ratio; source localization; time bandwidth product; unknown location; wide band sources; Acoustic arrays; Acoustic sensors; Bandwidth; Calibration; Direction of arrival estimation; Geometry; Sensor arrays; Shape; Signal to noise ratio; Wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

OCEANS '94. 'Oceans Engineering for Today's Technology and Tomorrow's Preservation.' Proceedings

Conference_Location

Brest

Print_ISBN

0-7803-2056-5

Type

conf

DOI

10.1109/OCEANS.1994.363933

Filename

363933