Adaptive equalization method reducing intersymbol interference, receive device implementing it and application thereof

A device for equalizing a digital signal to combat intersymbol interference using an iterative method of intersymbol interference elimination in which each sample received is associated with an estimated symbol representing the transmitted symbol, each iteration comprising the steps of

• selecting a sample from a set of received samples whose values has not been fixed during a previous iteration;
• proceeding with an interference elimination sequence comprising the steps of:
• comparing the sample with at least one confidence threshold;
• if said sample exceeds any said threshold, the further steps of:
• associating with said ample ion estimated symbol whose value depends on the threshold thus exceeded, the value of said sample being then fixed;
• and
• using said estimated symbol to eliminate the intersymbol interference caused by the estimated symbol to such samples whose respective values have not already been fixed;
• and
• if said sample does not exceed said threshold, the further steps of:
• selecting another received sample which has not been already selected during this iteration and
• proceeding with another said interference elimination sequence for said another received sample.

An iterative method of intersymbol interference elimination for equalizing a digital signal to combat intersymbol interference in a cellular radio system in which each sample received is associated with an estimated symbol representing the transmitted symbol, each iteration comprising the steps of:

• selecting a sample from a step of received samples whose value has not been fixed during a previous iteration;
• proceeding with an interference elimination sequence comprising the steps of:
• comparing the sample with at least one confidence threshold;
• if said sample exceeds any said threshold, the further steps of:
• associating with said sample an estimated symbol whose value depends on the threshold thus exceeded, the value of said sample being then fixed;
• and
• using said estimated symbol to eliminate the intersymbol interference caused by the estimated symbol to such samples whose respective values have not already been fixed;
• and
• if said sample does not exceed said threshold, the further steps of:
• selecting another received sample which has not been already selected during this iteration and
• proceeding with another said interference elimination sequence for said another received sample.