A Novel Track Initiation Method Based on Prior Motion Information and Hough Transform
This paper deals with the problem of track initiation in dense clutters. A novel Hough transform method based on prior motion information is proposed. Firstly, with time sequence of the measurements and targets’ kinematic information considered, the singl
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Research Institute of Information Fusion, Naval Aeronautical and Astronautical University, Yantai 264001, China [email protected], [email protected], [email protected] 2 School of Electronic and Information Engineering, Beihang University, Beijing 100191, China
Abstract. This paper deals with the problem of track initiation in dense clutters. A novel Hough transform method based on prior motion information is proposed. Firstly, with time sequence of the measurements and targets’ kinematic informa‐ tion considered, the single scan data accumulation effect is avoided, and the initi‐ ated tracks are more reliable. Then, measurements in observation space only vote to part of the lines that pass through them, which can effectively reduce the computational cost, and improve the initiation speed. Simulation results indicate that the proposed method is superior to the traditional algorithms in terms of detection probability, computational cost and robustness. Keywords: Track initiation · Prior information · Hough transform · Target tracking
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Introduction
Track initiation is the primary problem of multi-target tracking, especially for estab‐ lishing the records for new targets and terminating the records of inexistent targets [1, 2]. Because of the long distance between the radar and targets, it is hard for the targets to be accurately measured by sensors, and there is no statistical rule to judge whether the measure is from target or clutter, track initiation itself is a very difficult issue. It is hoped that target tracks are initiated as early as possible, because the operators can get an early situation picture for the surveillance area. On the other hand, it is hoped that false track initiation rate is as low as possible. False tracks cause waste of radar resources, because radar beams for track maintenance are assigned to the area where there is no target [3]. In addition, to detect modern dim targets, radar needs to lower the threshold. Therefore, the false alarm rate will be very high, and how to deal with the track initiation of targets moving in such circumstance has been a challenging task now.
© IFIP International Federation for Information Processing 2016 Published by Springer International Publishing AG 2016. All Rights Reserved Z. Shi et al. (Eds.): IIP 2016, IFIP AICT 486, pp. 72–77, 2016. DOI: 10.1007/978-3-319-48390-0_8
A Novel Track Initiation Method
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Review of Current Techniques
During the past several decades, a lot of research has been contributed to track initiation, and there are two main series, one is sequential data processing technique, such as the heuristic rule method [4], logic-based method [1]; another is batch data processing tech‐ nique, such as multiple hypothesis tracking method [5], integrated probabilistic data association algorithm [6], the Hough transform technique [7], and the modified Hough transform technique [8]. The former method has low computational cost, and is easy to apply. However, it is just suitable for initiation in sparse clutter. Though the latt
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