1. A system for processing signals for the real-time detection of a cyclic functional activity, the processing system being characterized in that it comprises: means for simultaneously receiving signals acquired by a sensor array including at least two sensors; means for recording and preprocessing the acquired signals during a plurality of consecutive processing cycles; means for identifying event combinations from the recordings of the acquired signals, enabling a calibration to be carried out, including: means for identifying a plurality of events in the acquired signals, each acquired signal of an acquisition means including an identified event, means for defining a model of the functional activity, the model being a timing chart consisting of a time order of the plurality of identified events and the mean delays between the identified events, means for defining a detection time window from the model of the functional activity.