LOCALIZATION OF A MANEUVERING TARGET USING SIMULATED ANNEALING

A two-stage algorithm is described for passively localizing a maneuver ing target with a towed array sonar. The first stage of the algorithm uses simulated annealing to obtain an initial estimate of the target t rack; the second stage applies a modified Newton's method to this init ial estimate in order to find the final track estimate. It is shown, u sing simulated examples, that a maneuvering target with a low signal-t o-noise ratio can be successfully localized by this technique.