method for calculating filterkoeffizienten for an equalizer in a kommunikationsempfu00e4nger through hermitischer optimization

摘要

A method for calculating filter coefficients for an equaliser in a communication receiver, the method including the steps of: calculating (22) channel response matrices G and H from channel estimation inputs; performing (24) a Cholesky decomposition of the channel response matrix G into a lower triangular matrix L and an upper triangular matrix U; performing (26) forward substitution on the lower triangular matrix L to calculate a column vector d; performing (28) backward substitution on the column vector d and the Hermitian transpose LH of the lower triangular matrix L to calculate a middle column c0 of the inverse G-1 of the channel response matrix G; and calculating (30) the filter coefficients from the middle column c0 of the inverse channel response matrix G-1 and the Hermitian transpose HH of the channel response matrix H.