Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.1/5344
Título: Single hydrophone source localization
Autor: Jesus, S. M.
Porter, M. B.
Stephan, Y.
Demoulin, X.
Rodríguez, O. C.
Coelho, E.
Palavras-chave: Broad-band
Shallow water
Source localization
Subspace methods
Data: Jul-2000
Editora: IEEE
Citação: S.M. JESUS M., M.B. PORTER, Y. STEPHAN, X. DEMOULIN, RODRÍGUEZ O. and E.F. COELHO, ``Single hydrophone source localization'', IEEE Journal of Oceanic Engineering, vol.25, No.3, pp. 337-346.
Resumo: The method presented in this paper assumes that the received signal is a linear combination of delayed and attenuated uncorrelated replicas of the source emitted waveform. The set of delays and attenuations, together with the channel environmental conditions, provide sufficient information for determining the source location. If the transmission channel is assumed known, the source location can be estimated by matching the data with the acoustic field predicted by the model conditioned on the estimated delay set. This paper presents alternative techniques that do not directly attempt to estimate time delays from the data but, instead, estimate the subspace spanned by the delayed source signal paths. Source localization is then done using a family of measures of the distance between that subspace and the subspace spanned by the replicas provided by the model. Results obtained on the INTIMATE’96 data set, in a shallow-water acoustic channel off the coast of Portugal, show that a sound source emitting a 300–800-Hz LFM sweep could effectively be localized in range or depth over an entire day.
Peer review: yes
URI: http://hdl.handle.net/10400.1/5344
DOI: http://dx.doi.or/10.1109/48.855379
ISSN: 0364-9059
Versão do Editor: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=855379&sortType%3Dasc_p_Sequence%26filter%3DAND%28p_IS_Number%3A18562%29
Aparece nas colecções:FCT2-Artigos (em revistas ou actas indexadas)

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