Mode sign estimation to improve source depth estimation

Author

Nicolas, Barbara ; Touzé, Grégoire Le ; Mars, Jérôme I.

Author_Institution

Dept. Images Signal, GIPSA-Lab., St. Martin d´´Heres

fYear

2008

fDate

March 31 2008-April 4 2008

Firstpage

2437

Lastpage

2440

Abstract

This paper describes source depth estimation in shallow water environments using a Horizontal Line Array of hydrophones on the sea bottom. A method based on modal propagation, using mode amplitude modulus, has been proposed by Nicolas, B., et al, (2006). As knowledge of the sign of mode amplitudes can improve source depth estimation, we present a estimator of these signs and integrate them in the source depth estimation method. Results on real data are shown.

Keywords

acoustic signal processing; array signal processing; estimation theory; hydrophones; underwater acoustic propagation; horizontal line array; hydrophones; modal propagation; mode amplitude modulus; mode sign estimation; shallow water environments; source depth estimation; Acoustic propagation; Adaptive arrays; Amplitude estimation; Data mining; Fourier transforms; Frequency; Sonar equipment; Underwater acoustics; Water resources; Waveguide theory; Underwater acoustics; matched-mode processing; mode sign estimation; source depth estimation;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech and Signal Processing, 2008. ICASSP 2008. IEEE International Conference on

Conference_Location

Las Vegas, NV

ISSN

1520-6149

Print_ISBN

978-1-4244-1483-3

Electronic_ISBN

1520-6149

Type

conf

DOI

10.1109/ICASSP.2008.4518140

Filename

4518140