Patent ID: 8401131

Claim:
A method for reducing interferences in at least two signals received by a receiver (RE) through a propagation channel, the received signals each including symbols distributed according to frequency and time dimensions and corresponding to a common emitted signal, comprising, for each received signal frame: weighting (E 2 ) the symbols of each received signal respectively by coefficients of a weighting vector (w 1 , w 2 ) associated with a respective antenna of the receiver and the symbols of an estimate (d) of the emitted signal (d) by coefficients of another weighting vector (w d ), the weighting vectors (w 1 , w 2 , w d ) each being a product of a rectangular matrix (B, C, D) having a number of columns lower than the number of rows and a reduced vector (a 1 , a 2 , a d ), the matrices being determined as a function of physical constraints of the propagation channel relating to frequency spreading and time spreading, minimizing (E 3 ) a function of the difference between the sum of the weighted received signals (r′) and the weighted estimate of the emitted signal in order to determine the reduced vectors, and determining (E 4 ) the weighting vectors as a function of the determined reduced vectors (w 1 , w 2 , w d ) and estimating the emitted signal as a function of the determined weighting vectors and the received signals.