Two deterministic blind channel estimation algorithms based on oblique projections

摘要

In this paper we consider the problem of deterministic blind channel estimation using oblique projections. Oblique projections allow to decompose a matrix into two non-orthogonal components. This property allows to develop two new blind channel estimation algorithms. The algorithms are robust to the spatial color of the additive noise and they are deterministic: if there is no additive noise, they allow perfect channel recovery with a finite number of samples if the model assumptions hold.