Tracking initially unresolved thrusting objects in 3D using a single stationary optical sensor
Paper i proceeding, 2017

This paper considers the problem of estimating the 3D states of a salvo of thrusting/ballistic endo-atmospheric objects using 2D Cartesian measurements from the focal plane array (FPA) of a single fixed optical sensor. Since the initial separations in the FPA are smaller than the resolution of the sensor, this results in merged measurements in the FPA, compounding the usual false-alarm and missed-detection uncertainty. We present a two-step methodology. First, we assume a Wiener process acceleration (WPA) model for the motion of the images of the projectiles in the optical sensor's FPA. We model the merged measurements with increased variance, and thence employ a multi-Bernoulli (MB) filter using the 2D measurements in the FPA. Second, using the set of associated measurements for each confirmed MB track, we formulate a parameter estimation problem, whose maximum likelihood estimate can be obtained via numerical search and can be used for impact point prediction. Simulation results illustrate the performance of the proposed method.

parameter estimation

Thrusting objects

MB ltering

data association


Q. Lu

University of Connecticut

Y. Bar-Shalom

University of Connecticut

P. Willett

University of Connecticut

Karl Granström

Chalmers, Signaler och system, Signalbehandling och medicinsk teknik

R. Ben-Dov

University of Connecticut

B. Milgrom

University of Connecticut

Proceedings of SPIE - The International Society for Optical Engineering

0277786X (ISSN) 1996756X (eISSN)

Vol. 10200 Article no 1020002- 1020002
978-151060901-3 (ISBN)







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