Method for updating a factor graph of an a posteriori probability estimator

摘要

A method for updating a factor graph (10;10′;10″) of an a posteriori probability estimator, the factor graph including at least one repetition node (13;13′;13″) and at least one sum node (11;11′;11″), wherein at least two connections are associated with each node, and wherein each connection is associated with an incoming message at the node and with an outgoing message from the node, wherein the method includes the steps of: storing the nodes' incoming and outgoing messages into memory (12;12′;12″) of the estimator as messages belonging to one same class of wrapped and/or sampled Gaussian messages; updating the node of the factor graph (10;10′;10″) by using a resulting message belonging to the class of incoming messages, the resulting message being obtained by processing the incoming wrapped and/or sampled Gaussian messages.