Detection and tracking of multiple targets within a three-dimensional medium

One of today's problems in signal processing is the identification of direction of arrival (DOA). The need for estimating direction-of-arrival (DOA) of energy wave fields within a three-dimensional medium has led to great interest in areas outside of military use. For most real-world applications however, a target tends to lie within three-dimensional medium. A method for detection and tracking of multiple moving targets within a three-dimensional medium has been developed.