(2005) Lecumberri Villamediana, Pablo; Gómez Fernández, Marisol; Carlosena García, Alfonso; Matemáticas; Ingeniería Eléctrica y Electrónica; Matematika; Ingeniaritza Elektrikoa eta Elektronikoa
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.
