In this study, extended target tracking (ETT) problem is considered. The ETT problem, unlike the classical target tracking problem, makes the assumption that a target generates more than one measurement at a time. Both the kinematic state and the shape of targets are estimated from the measurements collected under this assumption. In the literature, there are approximate solution algorithms to solve this problem. However, many of these studies include heuristic approximations. In this paper, we develop a new expectation maximization (EM) based method, which can track and learn the shape of an extended target whose extent can be represented by multiple ellipses. For this purpose, we cast the ETT problem as a parameter estimation problem in stochastic state space models, and perform estimation using particle filters. In the simulations, an extended target with unknown shape consisting of multiple ellipses is tracked accurately, and the shape of the target is estimated successfully.
Particle filter Expectation maximization Extended target tracking
Parçacık filtresi Beklenti maksimizasyonu Genişletilmiş hedef izleme
Birincil Dil | Türkçe |
---|---|
Bölüm | Makaleler |
Yazarlar | |
Yayımlanma Tarihi | 31 Mart 2019 |
Yayımlandığı Sayı | Yıl 2019 Cilt: 34 Sayı: 1 |