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Robust estimation techniques for target-motion analysis using passively sensed transient signals

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1 Author(s)
Carevic, D. ; Maritime Operations Div., Defence Sci. & Technol. Organ., Rockingham, WA, Australia

Sensor measurements derived from passively observed transient signals radiated by a target are non-Gaussian and may also be nonstationary due to their dependence on tracking geometry. Moreover, transients are usually observed in clutter, so there is also a possibility of false detections. A technique that incorporates a deterministic annealing procedure into a robust M-estimator, referred to as the annealing M-estimator, is applied to determine the target motion parameters based on such measurements. This technique is compared to standard robust M-estimators using several scenarios with different tracking geometry and is found to give more accurate parameter estimates.

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Oceanic Engineering, IEEE Journal of  (Volume:28 ,  Issue: 2 )