Broadband passive acoustic technique for target motion parameter estimation

A nonlinear least-squares method is formulated to estimate the motion param eters of a target whose broadband acoustic energy emissions are received by a ground-based array of sensors. This passive technique is applied to real acoustic sensor data recorded during the passage of a variety of ground ve hicles past a planar cross array and its effectiveness verified by comparin g the results Kith the actual values of the target motion parameters. The t echnique can also be applied to airborne targets.