Estimation of underwater source parameters by use of multipath information

Author

Li, Shaolin ; Tuteur, Franz B.

Author_Institution

Dept. of Electr. Eng., Yale Univ., New Haven, CT, USA

fYear

1988

fDate

3-5 Aug 1988

Firstpage

258

Lastpage

263

Abstract

Normal mode theory is used to formulate a multipath ocean channel in terms of a relatively straightforward linear-transfer function matrix. The formulation can be used as a basis for maximum-likelihood and MUSIC-type estimator for source parameters such as depth and range. The Cramer-Rao bound shows that the accuracy of depth estimation depends on the shape of the sound speed profile. It is shown that adapting a MUSIC-type algorithm to the transfer function matrix for the ocean avoids difficulties produced by coherence of multipath arrivals from the same source

Keywords

acoustic signal processing; parameter estimation; underwater sound; Cramer-Rao; MUSIC algorithm; acoustic signal processing; depth; linear-transfer function matrix; maximum likelihood algorithm; multipath information; multipath ocean channel; range; sound speed profile; underwater source parameters estimation; Acoustic noise; Acoustic propagation; Acoustic sensors; Delay effects; Delay estimation; Multiple signal classification; Oceans; Parameter estimation; Sea surface; Sensor arrays;

fLanguage

English

Publisher

ieee

Conference_Titel

Spectrum Estimation and Modeling, 1988., Fourth Annual ASSP Workshop on

Conference_Location

Minneapolis, MN

Type

conf

DOI

10.1109/SPECT.1988.206203

Filename

206203