Title :
Optimal observer maneuver for bearings-only tracking
Author :
Passerieux, J.M. ; Van Cappel, D.
Author_Institution :
Thomson Marconi Sonar S.A.S., Sophia-Antipolis, France
fDate :
7/1/1998 12:00:00 AM
Abstract :
In bearings-only tracking, observer maneuver is critical to ensure observability and to obtain an accurate target localization. Here, optimal control theory is applied to the determination of the course of a constant speed observer that minimizes an accuracy criterion deduced from the Fisher information matrix (FIM). Necessary conditions for optimal maneuver (Euler equations) are established and resolved, partly by analytical means and partly by an iterative numerical procedure. Examples of optimal observer maneuvers are presented and discussed
Keywords :
covariance matrices; direction-of-arrival estimation; iterative methods; maximum likelihood estimation; observability; observers; suboptimal control; target tracking; Euler equations; Fisher information matrix; accuracy criteria; accurate target localization; bearings-only tracking; constant speed observer; convergence; covariance matrix; iterative numerical procedure; maximum likelihood estimator; observability; optimal control theory; optimal observer maneuver; suboptimal strategies; target state vector; target tracking; Aerodynamics; Leg; Observability; Optimal control; Position measurement; Sonar measurements; Sonar navigation; Target tracking; Trajectory; Velocity measurement;
Journal_Title :
Aerospace and Electronic Systems, IEEE Transactions on
