Patent ID: 7283790
Filing Date: 2007-10-16
Classification: H04L

Abstract:
1. A blind or partially blind process to determine characteristic space-time parameters of a propagation channel in a system comprising at least one reception sensor, the process comprising: receiving a signal y(t) with the at least one reception sensor; determining antenna vectors (a) and time vectors (τ) starting from second order statistics of the received signals based on a specular structure of the propagation channel; selecting a length of the propagation channel {circumflex over (L)} such that {circumflex over (L)}≧Lg+Δτ determining a sub-space criterion matrix Q estimating a number of paths {circumflex over (d)}; estimating delays {circumflex over (τ)}, where  where  λ estimating a value of an antenna vector â by â=vp forming an estimate of a pulse response ĥ such that ĥ=G