Title :
Broadband passive acoustic technique for target motion parameter estimation
Author :
Lo, Kam W. ; Ferguson, Brian G.
Author_Institution :
Defence Sci. & Technol. Organ., Pyrmont, NSW, Australia
fDate :
1/1/2000 12:00:00 AM
Abstract :
A nonlinear least-squares method is formulated to estimate the motion parameters 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 vehicles past a planar cross array and its effectiveness verified by comparing the results with the actual values of the target motion parameters. The technique cam also be applied to airborne targets
Keywords :
Newton method; acoustic correlation; array signal processing; delay estimation; direction-of-arrival estimation; least squares approximations; motion estimation; nonlinear estimation; target tracking; airborne targets; arbitrary array; broadband passive acoustic technique; closest points of approach; ground vehicles passage; ground-based array of sensors; minimization; nonlinear least-squares method; passive source localization; planar cross array; quasi-Newton method; real acoustic sensor data; target motion model; target motion parameter estimation; time delay estimation; Acoustic arrays; Acoustic emission; Acoustic sensors; Aircraft; Australia; Maximum likelihood estimation; Motion estimation; Parameter estimation; Sensor arrays; Target tracking;
Journal_Title :
Aerospace and Electronic Systems, IEEE Transactions on
