Instrumentation, Techniques, and Measurement

Optical target tracking by scheduled range measurements

[+] Author Affiliations
Mohammad Hossein Ferdowsi, Ebrahim Sabzikar

Malek-e-Ashtar University of Technology, Control Group, Electrical Engineering Department, Lavizan, Tehran 15875-1774, Iran

Opt. Eng. 54(4), 044101 (Apr 06, 2015). doi:10.1117/1.OE.54.4.044101
History: Received November 4, 2014; Accepted March 6, 2015
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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.

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© 2015 Society of Photo-Optical Instrumentation Engineers

Citation

Mohammad Hossein Ferdowsi and Ebrahim Sabzikar
"Optical target tracking by scheduled range measurements", Opt. Eng. 54(4), 044101 (Apr 06, 2015). ; http://dx.doi.org/10.1117/1.OE.54.4.044101


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