método para fazer uma classificação de identidade associado a uma fonte de dados, sistema de sensibilidade responsivo a sinais acústicos ou sísmicos, método para identificar sinais sísmicos ou acústicos de interesse que se originam de veículos de movimento motorizados, método para identificar sinais sísmicos ou acústicos de interesse que se originam do movimento de passos, e, método para identificar sinais sísmicos ou acústicos de interesse que se originam de maquinário fixo ou de movimento

Methods or systems for identifying seismic or acoustic signals of interest originating with moving motorized vehicles or footstep movement or stationary or moving machinery. A related system for monitoring an area includes a plurality of sensing devices each comprising a frame and a piezo-electric sensor element. A monitoring device is coupled to receive information from each of the sensing devices. One method includes providing a processing chain coupled to receive signal data from a sensor device which receives the signals, including a detection stage, a Joint Time Frequency (JTF) domain stage, and a classification stage. The detection stage identifies presence of signals that emerge from the background. The JTF domain stage estimates the state of the signals of interest over time. The classification stage assesses the previously derived information to form a decision about source identity. In one embodiment, the detector stage performs detections on a single cycle basis.