Abstract:

Considering the multipath signal propagation in over-the-horizon radar (OTHR), a multi-target tracking algorithm based on the multipath information fusion is proposed. It exploits the merit of the “soft” association between measurements and targets in probabilistic multi-hypothesis tracker (PMHT) algorithm. By explicitly modeling the multipath measurement function, the resulting fusion formulation is derived. The simulation results show that, in the complex scenario of OTHR with low detection probability and dense clutter, the proposed multipath aided PMHT algorithm notably outperforms the standard PMHT in the mult-target states estimation and the rate of track loss.