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Optical Engineering

Optical target tracking by scheduled range measurements
Author(s): Mohammad Hossein Ferdowsi; Ebrahim Sabzikar
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Paper Abstract

Optical target tracking by regular target bearing measurements and target range in a lower and scheduled measurement rate is considered. Variance of the target range estimation error is used as the scheduling criterion. For this purpose, target dynamic state vector in modified spherical coordinates is stated in such a way that all target states are decoupled from the range-related target state. Target state dynamic equations in modified spherical coordinates for nearly constant velocity, nearly constant acceleration, and coordinated turn rate kinematic models are analytically derived. For resulted state dynamic equations, an unscented Kalman filter interactive multiple model with range measurement scheduling is utilized as a tracking filter. It is shown that target states are estimated properly and the applied filter has high performance in maneuvering target tracking.

Paper Details

Date Published: 6 April 2015
PDF: 11 pages
Opt. Eng. 54(4) 044101 doi: 10.1117/1.OE.54.4.044101
Published in: Optical Engineering Volume 54, Issue 4
Show Author Affiliations
Mohammad Hossein Ferdowsi, Malek Ashtar Univ. of Technology (Iran)
Ebrahim Sabzikar, Malek-Ashtar Univ. of Technology (Iran)

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