Multichannel blind deconvolution of impulsive signals
Fecha
2005Versión
Acceso abierto / Sarbide irekia
Tipo
Contribución a congreso / Biltzarrerako ekarpena
Versión
Versión publicada / Argitaratu den bertsioa
Impacto
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nodoi-noplumx
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Resumen
In this communication, the problem of blind deconvolution of transient, impulsive signals in a multichannel environment
is addressed. This kind of signals arise naturally, or are used
as external excitation, in many mechanical and acoustical
systems and can only be observed indirectly, after propagation
through the medium. Blind deconvolution or identi cation
methods published to date are no ...
[++]
In this communication, the problem of blind deconvolution of transient, impulsive signals in a multichannel environment
is addressed. This kind of signals arise naturally, or are used
as external excitation, in many mechanical and acoustical
systems and can only be observed indirectly, after propagation
through the medium. Blind deconvolution or identi cation
methods published to date are not suitable for recovering
these sources or the system response, as identi ability conditions
are not met. We fully develop here a deterministic
subspace method for the blind deconvolution in a multichannel
environment which does not impose any restrictions on
the excitation signals or on the impulse response of propagation
channels, apart from nite length and channel diversity.
The method is also extended to cope with signals in noisy
environments. [--]
Materias
Blind deconvolution,
Inpulsive signals,
Multichannel environments
Notas
Trabajo presentado al XIII European Signal Processing Conference (EUSIPCO), Antalya (Turquía), 2005
Departamento
Universidad Pública de Navarra. Departamento de Matemáticas /
Universidad Pública de Navarra. Departamento de Ingeniería Eléctrica y Electrónica /
Nafarroako Unibertsitate Publikoa. Matematika Saila /
Nafarroako Unibertsitate Publikoa. Ingeniaritza Elektrikoa eta Elektronikoa Saila
Versión del editor
Entidades Financiadoras
This work has been supported by the Dirección General de Investigación under grant DPI-2003-08637-C01 and Proyecto MTM 2004-08219-
C02-01 of DGICYT, Ministerio de Educación y Ciencia of Spain.