METHOD OF DECODING A SIGNAL IMPLEMENTING A PROGRESSIVE CONSTRUCTION OF A DECODING TREE, CORRESPONDING COMPUTER PROGRAM PRODUCT AND DECODING DEVICE

摘要

The invention relates to a method of decoding a signal received, implementing a progressive construction of a decoding tree. According to the invention, the construction implements at least two iterations (52, 53) of the following steps: selection of at least one child node of a current node belonging to a selection interval; storage in a first stack of the child nodes; deletion from the first stack of the current node; selection from the first stack of a new current node; and if the new current node is a leaf node, storage of the path between the root node and the leaf node, in the second stack, and deletion of said leaf node from the first stack; otherwise, return to the step of selecting a child node for the new current node. Moreover, the method assigns a probability of likelihood to the bits of at least one symbol of the data signal, taking account of the paths stored in the second stack, and comprises a step of determining a probabilistic estimation of the signal.