초록 ▼

A method for the joint detection of multiple coded digital signals that share the same transmission medium in a manner that causes mutual interference. The method is comprised of two steps that are applied to preliminary estimates of each digital signal, one or more times. The first step is to obtai

A method for the joint detection of multiple coded digital signals that share the same transmission medium in a manner that causes mutual interference. The method is comprised of two steps that are applied to preliminary estimates of each digital signal, one or more times. The first step is to obtain reliability estimates for each data element of each digital signal by combining the preliminary estimates, a statistical model for the interference, and any a priori information regarding the data elements. The second step is to revise these reliability estimates for each digital signal based on the forward error correction code used for that digital signal. When the steps are repeated, the revised reliability estimates from the second step are used as a priori information for the first step.

대표청구항 ▼

[ What is claimed is:] [1.] A method of detecting a plurality of digital signals that are forward error correction encoded and mutually interfere comprising the steps of:(a) using a detector, detecting the plurality of digital signals and providing detector estimates of a first digital signal and se

[ What is claimed is:] [1.] A method of detecting a plurality of digital signals that are forward error correction encoded and mutually interfere comprising the steps of:(a) using a detector, detecting the plurality of digital signals and providing detector estimates of a first digital signal and second other digital signal from the plurality of digital signals;b) (i) using a processor receiving the detector estimates and calculating a reliability estimate for each data element of first digital signal from the plurality of digital signals, the reliability estimate calculated from detector estimates of those data elements, a model of the interference, and a priori information determined in previous iterations, if any, concerning those data elements;(ii) using a processor, calculating a reliability estimate for each data element of a second other digital signal from the plurality of digital signals, the reliability estimate calculated from detector estimates of those data elements, a model of the interference, and a priori information determined in previous iterations, if any, concerning those data elements;c) using the processor, calculating a revised reliability estimate for each data element in dependence upon the reliability estimates from the step (b) and the properties of the forward error correction code for the corresponding digital signal; andd) repeating the previous two steps, one or more times, using the revised reliability estimates provided by step (c) as a priori information for the step (b).