Three-dimensional multiple-source focalization in an uncertain ocean environment

Author
Tollefsen, Dag
Dosso, Stan E.
Date Issued
2013
Permalink
http://publications.ffi.no/handle/123456789/459
DOI
10.1121/1.4824633
Collection
Articles
Description
Tollefsen, Dag; Dosso, Stan E.. Three-dimensional multiple-source focalization in an uncertain ocean environment. Journal of the Acoustical Society of America 2013 ;Volum 134.(5) s. EL426-EL431
JASMAN1345EL426_1.pdf
Size: 232k
Abstract
This letter develops a Bayesian focalization approach for three-dimensional localization of an unknown number of sources in shallow water with uncertain environmental properties. The algorithm minimizes the Bayesian information criterion using adaptive hybrid optimization for environmental parameters, Metropolis sampling for source bearing, and Gibbs sampling for source ranges and depths. Maximum-likelihood expressions are used for unknown complex source strengths and noise variance, which allows these parameters to be sampled implicitly. An efficient scheme for adding/deleting sources is used during the optimization. A synthetic example considers localizing a quiet source in the presence of multiple interferers using a horizontal line array.
View Meta Data