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Open AccessArticle

An Efficient Multi-Path Multitarget Tracking Algorithm for Over-The-Horizon Radar

1
Department of Electronic Systems Engineering, Hanyang University, Ansan 15588, Korea
2
School of Automation, Hangzhou Dianzi University, Xiasha Higher Education Zone, Hangzhou 310018, China
*
Author to whom correspondence should be addressed.
This paper is an extended version of our paper published in Huang, Y.; Chong, S.Y.; Song, T.L.; Lee, J.H. In Proceedings of the Seventh International Conference on Control Automation & Information Sciences (ICCAIS 2018), Hangzhou, China, 24–27 October 2018.
Sensors 2019, 19(6), 1384; https://doi.org/10.3390/s19061384
Received: 12 February 2019 / Revised: 8 March 2019 / Accepted: 18 March 2019 / Published: 20 March 2019
(This article belongs to the Special Issue Multiple Object Tracking: Making Sense of the Sensors)
In target tracking environments using over-the-horizon radar (OTHR), one target may generate multiple detections through different signal propagation paths. Trackers need to jointly handle the uncertainties stemming from both measurement origin and measurement path. Traditional multitarget tracking algorithms suffer from high computational loads in such environments since they need to enumerate all possible joint measurement-to-track assignments considering the measurements paths unless they employ some approximations regarding the measurements and their corresponding paths. In this paper, we propose a novel algorithm, named multi-path linear multitarget integrated probabilistic data association (MP-LM-IPDA), to efficiently track multitarget in multiple detection environments. Instead of generating all possible joint assignments, MP-LM-IPDA calculates the modulated clutter measurement density for each measurement cell of each track. The modulated clutter measurement density considers the possibility that the measurement cells originate from the clutter as well as from other potential targets. By incorporating the modulated clutter measurement density, the single target tracking structure can be applied for multitarget tracking, which significantly reduces the computational load. The simulation results demonstrate the effectiveness and efficiency of the proposed algorithm. View Full-Text
Keywords: multitarget tracking; linear multitarget process; data association; OTHR; multiple detection; target existence evaluation multitarget tracking; linear multitarget process; data association; OTHR; multiple detection; target existence evaluation
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Huang, Y.; Shi, Y.; Song, T.L. An Efficient Multi-Path Multitarget Tracking Algorithm for Over-The-Horizon Radar. Sensors 2019, 19, 1384.

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