Quasi maximum likelihood MIMO blind deconvolution: Super- and sub-Gaussianity versus consistency
Alex M. Bronstein, Michael M. Bronstein, Michael Zibulevsky · IEEE Transactions on Signal Processing · 2005
In this correspondence, we consider the problem of multi-input multi output (MIMO) quasi maximum likelihood (QML) blind deconvolution. We examine two classes of estimators, which are commonly believed to be suitable for super and sub-Gaussian sources. We state the consistency conditions and demonstrate a source distribution, for which the studied estimators are unsuitable, in the sense that they are inconsistent.