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Publicação
Single hydrophone source localization
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Orientador(es)
Resumo(s)
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.
Descrição
Palavras-chave
Broad-band Shallow water Source localization Subspace methods
Contexto Educativo
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.
Editora
IEEE