Title :
TMA from bearings and multipath time delays
Author :
Blanc-Benon, P. ; Jauffret, C.
Author_Institution :
Thomson Marconi Sonar SAS, Sophia-Antipolis, France
fDate :
7/1/1997 12:00:00 AM
Abstract :
A novel approach for target motion analysis (TMA), which uses conventional passive bearing together with multipath time-delay measurements is examined. This so-called "Multipath TMA" offers two tactical advantages over the classical bearings-only TMA: no requirement for any ownship maneuver, and a good performance in terms of estimation error achieved in a shorter time. Both known and unknown multipath cases are addressed. Finally, Monte-Carlo simulations and at-sea trials demonstrate the practical efficiency of such a multipath TMA.
Keywords :
Monte Carlo methods; direction-of-arrival estimation; maximum likelihood estimation; sonar signal processing; sonar tracking; target tracking; Cramer-Rao bounds; Monte-Carlo simulations; at-sea trials; bilinear sound velocity profile; efficiency; eigenrays; estimation error; isospeed channel; maximum likelihood estimator; multipath time delays; passive bearing; sonar; tactical advantages; target motion analysis; Aerospace testing; Delay effects; Maximum likelihood estimation; Motion analysis; Motion measurement; Parameter estimation; Power measurement; Sea measurements; Sonar measurements; Synthetic aperture sonar; Velocity measurement;
Journal_Title :
Aerospace and Electronic Systems, IEEE Transactions on
