Patent ID: 6925110

Claim:
A method of processing a digital signal at an output of a filter matched to a spreading code in a spread spectrum radio communication receiver, the digital signal comprising successive blocks each corresponding to a sequence of symbols sent by a transmitter, each sequence comprising at least one symbol known a priori and information symbols, the method comprising the steps of: estimating statistical parameters representing a channel having at least one propagation path between the transmitter and the receiver; and processing each block of the digital signal to estimate instantaneous amplitudes of reception of the symbols of the corresponding sequence sent by the transmitter, wherein the processing of a block comprises the steps of: estimating a group of at least one information symbol of the sequence by optimizing a criterion defined by the digital signal of said block, the estimated statistical parameters, at least one symbol of the sequence which is known a priori and each information symbol of said group; then, estimating said instantaneous amplitudes as a function of the digital signal of said block, of the estimated statistical parameters, of the symbols of the sequence which are known a priori and of the estimated symbols of said group.