Brief description of the equalization allowing a multisensor reception multisensor in the presence of interference and multiple paths of propagation and respect for implementing it.

摘要

A method comprising the steps of calculating the coefficients of a spatial filter applied to signals from a third stage as well as those of a temporal filter applied to the reply signal consisting either of known symbols for learning sequences (SA) or of demodulated symbols for information sequences (SI). The coefficients of both filters are calculated in such a way as to minimise, under a predetermined constraint, a root-mean-square error criterion between the spatial filter output and the temporal filter output. Signals from the third stage are then filtered using the resulting spatial filter coefficients, whereby the sensor array gain is optimised in the direction of the wanted spatial filter output and interference is rejected. The spatial filtering output (y(t)) then undergoes one-dimensional equalisation at a symbol rate that determines the transmitted symbols, and the spatial and equalising filter coefficients are updated in accordance with a predetermined sequencing. The method is useful for HF and GSM reception in a disturbed radio environment.